Update dependency json_pure to '<= 2.8.1'

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
json_pure (source, changelog)	'<= 2.0.1' → '<= 2.8.1'

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Release Notes

ruby/json (json_pure)

v2.8.1

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• Fix the java packages to include the extension.

v2.8.0

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• Emit a deprecation warning when JSON.load create custom types without the create_additions option being explicitly enabled.
  • Prefer to use JSON.unsafe_load(string) or JSON.load(string, create_additions: true).
• Emit a deprecation warning when serializing valid UTF-8 strings encoded in ASCII_8BIT aka BINARY.
• Bump required Ruby version to 2.7.
• Add support for optionally parsing trailing commas, via allow_trailing_comma: true, which in cunjunction with the
  pre-existing support for comments, make it suitable to parse jsonc documents.
• Many performance improvements to JSON.parse and JSON.load, up to 1.7x faster on real world documents.
• Some minor performance improvements to JSON.dump and JSON.generate.
• JSON.pretty_generate no longer includes newlines inside empty object and arrays.

v2.7.6

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• Fix a regression in JSON.generate when dealing with Hash keys that are string subclasses, call to_json on them.

v2.7.5

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• Fix a memory leak when #to_json methods raise an exception.
• Gracefully handle formatting configs being set to nil instead of "".
• Workaround another issue caused by conflicting versions of both json_pure and json being loaded.

v2.7.4

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• Workaround a bug in 3.4.8 and older rubygems/rubygems#6490.
  This bug would cause some gems with native extension to fail during compilation.
• Workaround different versions of json and json_pure being loaded (not officially supported).
• Make json_pure Ractor compatible.

v2.7.3

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• Numerous performance optimizations in JSON.generate and JSON.dump (up to 2 times faster).
• Limit the size of ParserError exception messages, only include up to 32 bytes of the unparsable source.
• Fix json-pure's Object#to_json to accept non-state arguments.
• Fix multiline comment support in json-pure.
• Fix JSON.parse to no longer mutate the argument encoding when passed an ASCII-8BIT string.
• Fix String#to_json to raise on invalid encoding in json-pure.
• Delete code that was based on CVTUTF.
• Use the pure-Ruby generator on TruffleRuby.
• Fix strict mode in json-pure to not break on Integer.

v2.7.2

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• Use rb_sym2str instead of SYM2ID #​561
• Fix memory leak when exception is raised during JSON generation #​574
• Remove references to "19" methods in JRuby #​576
• Make OpenStruct support as optional by @​hsbt in #​565
• Autoload JSON::GenericObject to avoid require ostruct warning in Ruby 3.4 #​577
• Warn to install ostruct if json couldn't load it by @​hsbt #​578

v2.7.1

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• JSON.dump: handle unenclosed hashes regression #​554
• Overload kwargs in JSON.dump #​556
• [DOC] RDoc for additions #​557
• Fix JSON.dump overload combination #​558

v2.7.0

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• Add a strict option to Generator #​519
• escape_slash option was renamed as script_safe and now also escape U+2028 and U+2029. escape_slash is now an alias of script_safe #​525
• Remove unnecessary initialization of create_id in JSON.parse() #​454
• Improvements to Hash#to_json in pure implementation generator #​203
• Use ruby_xfree to free buffers #​518
• Fix "unexpected token" offset for Infinity #​507
• Avoid using deprecated BigDecimal.new on JRuby #​546
• Removed code for Ruby 1.8 #​540
• Rename JSON::ParseError to JSON:ParserError #​530
• Call super in included hook #​486
• JRuby requires a minimum of Java 8 #​516
• Always indent even if empty #​517

v2.6.3

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• bugfix json/pure mixing escaped with literal unicode raises Encoding::CompatibilityError #​483
• Stop including the parser source LINE in exceptions #​470

v2.6.2

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• Remove unknown keyword arg from DateTime.parse #​488
• Ignore java artifacts by @​hsbt #​489
• Fix parser bug for empty string allocation #​496

v2.6.1

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• Restore version.rb with 2.6.1

v2.6.0

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• Use rb_enc_interned_str if available to reduce allocations in freeze: true mode. #​451.
• Bump required_ruby_version to 2.3.
• Fix compatibility with GC.compact.
• Fix some compilation warnings. #​469

v2.5.1

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• Restore the compatibility for constants of JSON class.

v2.5.0

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• Ready to Ractor-safe at Ruby 3.0.

v2.4.1

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• Restore version.rb with 2.4.1

v2.4.0

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• Implement a freeze: parser option #​447
• Fix an issue with generate_pretty and empty objects in the Ruby and Java implementations #​449
• Fix JSON.load_file doc #​448
• Fix pure parser with unclosed arrays / objects #​425
• bundle the LICENSE file in the gem #​444
• Add an option to escape forward slash character #​405
• RDoc for JSON #​439 #​446 #​442 #​434 #​433 #​430

v2.3.1

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• Spelling and grammar fixes for comments. Pull request #​191 by Josh
  Kline.
• Enhance generic JSON and #generate docs. Pull request #​347 by Victor
  Shepelev.
• Add :nodoc: for GeneratorMethods. Pull request #​349 by Victor Shepelev.
• Baseline changes to help (JRuby) development. Pull request #​371 by Karol
  Bucek.
• Add metadata for rubygems.org. Pull request #​379 by Alexandre ZANNI.
• Remove invalid JSON.generate description from JSON module rdoc. Pull
  request #​384 by Jeremy Evans.
• Test with TruffleRuby in CI. Pull request #​402 by Benoit Daloze.
• Rdoc enhancements. Pull request #​413 by Burdette Lamar.
• Fixtures/ are not being tested... Pull request #​416 by Marc-André
  Lafortune.
• Use frozen string for hash key. Pull request #​420 by Marc-André
  Lafortune.
• Added :call-seq: to RDoc for some methods. Pull request #​422 by Burdette
  Lamar.
• Small typo fix. Pull request #​423 by Marc-André Lafortune.

v2.3.0

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• Fix default of create_additions to always be false for JSON(user_input)
  and JSON.parse(user_input, nil).
  Note that JSON.load remains with default true and is meant for internal
  serialization of trusted data. [CVE-2020-10663]
• Fix passing args all #to_json in json/add/*.
• Fix encoding issues
• Fix issues of keyword vs positional parameter
• Fix JSON::Parser against bigdecimal updates
• Bug fixes to JRuby port

v2.2.0

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• Adds support for 2.6 BigDecimal and ruby standard library Set datetype.

v2.1.0

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• Allow passing of decimal_class option to specify a class as which to parse
  JSON float numbers.

v2.0.4

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• Raise exception for incomplete unicode surrogates/character escape
  sequences. This problem was reported by Daniel Gollahon (dgollahon).
• Fix arbitrary heap exposure problem. This problem was reported by Ahmad
  Sherif (ahmadsherif).

v2.0.3

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• Set required_ruby_version to 1.9
• Some small fixes

v2.0.2

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• Specify required_ruby_version for json_pure.
  • Fix issue #​295 failure when parsing frozen strings.

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