Implement SDK metrics for logs

[anuraaga]

Very similar to #7895 but for logs

[codecov]

Codecov Report

❌ Patch coverage is 95.18717% with 9 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.11%. Comparing base (22d90b6) to head (ef71262).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
...metry/sdk/logs/export/BatchLogRecordProcessor.java	80.00%	2 Missing and 1 partial ⚠️
...entelemetry/sdk/logs/SdkLoggerInstrumentation.java	91.30%	0 Missing and 2 partials ⚠️
...etry/sdk/logs/export/SimpleLogRecordProcessor.java	83.33%	1 Missing and 1 partial ⚠️
...xport/LegacyLogRecordProcessorInstrumentation.java	97.87%	0 Missing and 1 partial ⚠️
...port/SemConvLogRecordProcessorInstrumentation.java	98.07%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##               main    #7931    +/-   ##
==========================================
  Coverage     90.10%   90.11%            
- Complexity     7370     7411    +41     
==========================================
  Files           828      833     +5     
  Lines         22254    22396   +142     
  Branches       2192     2200     +8     
==========================================
+ Hits          20053    20183   +130     
- Misses         1515     1520     +5     
- Partials        686      693     +7     

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[jack-berg]

Looks good. Thanks for working on this!

[jack-berg]

Noting that its a conscious decision to repeat LongCallable here to avoid more internal shared code.

[jkwatson]

🚢

[otelbot]

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