Replace Xlint deprecation check with custom errorprone check

[trask]

Motivated by #8060 (well, that and the many PRs in the instrumentation repo where this has plagued me recently)

Context:

When compiling with --release 8, javac's -Xlint:deprecation warns on imports of deprecated classes (JDK-8032211). Since @SuppressWarnings cannot suppress import-level warnings, this forced us to use fully-qualified class names as a workaround.

[trask]

it's slightly more strict than javac here, but this does align with Intellij's warnings, so seems good

[codecov]

Codecov Report

❌ Patch coverage is 76.47059% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.25%. Comparing base (6893380) to head (cfd48d7).

Files with missing lines	Patch %	Lines
...ntelemetry/sdk/testing/logs/TestLogRecordData.java	0.00%	3 Missing ⚠️
...sting/logs/internal/TestExtendedLogRecordData.java	0.00%	3 Missing ⚠️
...entelemetry/sdk/logs/ExtendedSdkLogRecordData.java	0.00%	1 Missing ⚠️
...va/io/opentelemetry/sdk/logs/SdkLogRecordData.java	0.00%	1 Missing ⚠️

❌ Your patch check has failed because the patch coverage (76.47%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #8061      +/-   ##
============================================
+ Coverage     90.23%   90.25%   +0.02%     
+ Complexity     7602     7600       -2     
============================================
  Files           838      838              
  Lines         22806    22782      -24     
  Branches       2274     2274              
============================================
- Hits          20578    20561      -17     
+ Misses         1518     1509       -9     
- Partials        710      712       +2     

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