Tweaks to logs integration test

[cijothomas]

Follow up to #2436

Replaces log crate with tracing crate in integration tests.
Name the spawned thread in BatchLogProcessor.
Validate Scope too in integration tests.

[Copilot]

Copilot reviewed 4 out of 6 changed files in this pull request and generated 2 comments.

Files not reviewed (2)

• opentelemetry-otlp/tests/integration_test/expected/failed_logs.json: Language not supported
• opentelemetry-otlp/tests/integration_test/expected/logs.json: Language not supported

[Copilot]

Commented-out code should be removed or properly handled. Leaving it commented out with a 'TODO' is not ideal.

Suggested change

	// tokio::time::sleep(Duration::from_secs(10)).await;
	// let _ = logger_provider.shutdown();

[Copilot]

The error message for thread spawn failure is not descriptive enough. Consider providing more details, such as: 'Failed to spawn OpenTelemetry logs batch processor thread.'

Suggested change

	}).expect("Thread spawn failed."); //TODO: Handle thread spawn failure
	}).expect("Failed to spawn OpenTelemetry logs batch processor thread.");

[codecov]

Codecov Report

Attention: Patch coverage is 64.91228% with 20 lines in your changes missing coverage. Please review.

Project coverage is 76.1%. Comparing base (0a7ad69) to head (5dd69eb).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
opentelemetry-sdk/src/logs/log_processor.rs	64.9%	20 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #2453   +/-   ##
=====================================
  Coverage   76.1%   76.1%           
=====================================
  Files        122     122           
  Lines      22062   22065    +3     
=====================================
+ Hits       16790   16793    +3     
  Misses      5272    5272           

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