Update stretchr/testify to v1.11.1

[johnfercher]

Bumps github.com/stretchr/testify from v1.8.4 to v1.11.1. Remains on the v1 major line, so no breaking API changes.

Description

Related Issue

Checklist

check with "x", if applied to your change

• All methods associated with structs has func (<first character of struct name> *struct) method() {} name style.
• Wrote unit tests for new/changed features.
• Updated docs/doc.go
• Updated pkg/example_test.go
• Updated README.md
• New public methods/structs/interfaces has comments upside them explaining they responsibilities
• Executed make dod with none issues pointed out by golangci-lint and goreportcard-cli

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (171e257) to head (5511f56).

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #17   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            2         2           
  Lines          107       107           
=========================================
  Hits           107       107           

Flag	Coverage Δ
unittests	100.00% <ø> (ø)

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