Chore: consider using let instead of var type

[sgsm74]

because variable 'sdkPackages' was never mutated

📜 Description

💡 Motivation and Context

💚 How did you test it?

#skip-changelog

📝 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

[marandaneto]

Makes sense @sgsm74 thanks

[codecov-commenter]

Codecov Report

Base: 90.09% // Head: 90.00% // Decreases project coverage by -0.08% ⚠️

Coverage data is based on head (ee0b246) compared to base (25e9b59).
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1130      +/-   ##
==========================================
- Coverage   90.09%   90.00%   -0.09%     
==========================================
  Files         117      108       -9     
  Lines        3605     3413     -192     
==========================================
- Hits         3248     3072     -176     
+ Misses        357      341      -16     

Impacted Files	Coverage Δ
logging/lib/src/logging_integration.dart
logging/lib/src/extension.dart
dio/lib/src/breadcrumb_client_adapter.dart
dio/lib/src/dio_event_processor.dart
dio/lib/src/sentry_dio_extension.dart
dio/lib/src/failed_request_interceptor.dart
dio/lib/src/tracing_client_adapter.dart
dio/lib/src/sentry_transformer.dart
dio/lib/src/sentry_dio_client_adapter.dart

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