Enrich Dart context with isolate name

[kuhnroyal]

📜 Description

Enrich Dart context with isolate name

💡 Motivation and Context

• fixes Enrich events with isolate name #597

💚 How did you test it?

Add a test :)

📝 Checklist

• I reviewed submitted code
• I added tests to verify changes
• I updated the docs if needed
• All tests passing
• No breaking changes

🔮 Next steps

none

[codecov-commenter]

Codecov Report

Merging #600 (617c8ff) into main (6ebc780) will increase coverage by 1.71%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #600      +/-   ##
==========================================
+ Coverage   90.37%   92.09%   +1.71%     
==========================================
  Files          89        7      -82     
  Lines        2951      253    -2698     
==========================================
- Hits         2667      233    -2434     
+ Misses        284       20     -264     

Impacted Files	Coverage Δ
dart/lib/src/isolate_error_integration.dart
dart/lib/src/transport/rate_limit_category.dart
...art/lib/src/http_client/failed_request_client.dart
dart/lib/src/version.dart
dart/lib/src/sentry_sampling_context.dart
dart/lib/src/hub_adapter.dart
dart/lib/src/protocol/sentry_device.dart
dart/lib/src/http_client/breadcrumb_client.dart
dart/lib/src/protocol/sentry_app.dart
dart/lib/src/transport/rate_limiter.dart
... and 71 more

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[marandaneto]

LGTM
thanks @kuhnroyal