Add workaround for BigInt field type support as string

[MurzNN]

Here is workaround for fix errors with BigInt Drupal field types (Integer with size = big).
Now those fields are represented as 32-bit integer in GraphQL, and throw the error, when value is larger than 32-bit, with inserting null in result.
This workaround is replacing Integer GraphQL field type to String for those field types, to fix described problem.
Closes #1130

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Codecov Report

Merging #1143 (aba5d87) into 8.x-3.x (8418bb7) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@              Coverage Diff              @@
##             8.x-3.x    #1143      +/-   ##
=============================================
+ Coverage      78.72%   78.73%   +0.01%     
- Complexity      1139     1141       +2     
=============================================
  Files            192      192              
  Lines           3027     3029       +2     
=============================================
+ Hits            2383     2385       +2     
  Misses           644      644              

Impacted Files	Coverage Δ	Complexity Δ
...e/src/Plugin/Deriver/Fields/EntityFieldDeriver.php	96.66% <100.00%> (+0.23%)	11.00 <0.00> (+2.00)

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.73%. Comparing base (8418bb7) to head (aba5d87).
Report is 38 commits behind head on 8.x-3.x.

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Additional details and impacted files

@@              Coverage Diff              @@
##             8.x-3.x    #1143      +/-   ##
=============================================
+ Coverage      78.72%   78.73%   +0.01%     
- Complexity      1139     1141       +2     
=============================================
  Files            192      192              
  Lines           3027     3029       +2     
=============================================
+ Hits            2383     2385       +2     
  Misses           644      644              

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