Improved support for multiple classloaders in IncrementingUuidGenerator

[jkronegg]

🤔 What's changed?

Corrected a test-case which fails rarely but sometimes.
Added possibility to give a specific classloader identifier.

⚡️ What's your motivation?

Fixes #2851

🏷️ What kind of change is this?

• 🐛 Bug fix (non-breaking change which fixes a defect)
• ⚡ New feature (non-breaking change which adds new behaviour)

♻️ Anything particular you want feedback on?

The comments in #2851 describe the problem and solution.

📋 Checklist:

• I agree to respect and uphold the Cucumber Community Code of Conduct
• I've changed the behaviour of the code
  • I have added/updated tests to cover my changes.
• My change requires a change to the documentation.
  • I have updated the documentation accordingly.
• Users should know about my change
  • I have added an entry to the "Unreleased" section of the CHANGELOG, linking to this pull request.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.99%. Comparing base (c6c0ada) to head (d1261a9).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #2853   +/-   ##
=========================================
  Coverage     84.99%   84.99%           
- Complexity     2733     2734    +1     
=========================================
  Files           331      331           
  Lines          9557     9559    +2     
  Branches        918      918           
=========================================
+ Hits           8123     8125    +2     
  Misses         1109     1109           
  Partials        325      325           

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[mpkorstanje]

Cheers!