support ExtendedOpenTelemetry in GlobalOpenTelemetry

[zeitlinger]

Follow up to #7496

[codecov]

Codecov Report

❌ Patch coverage is 76.92308% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.15%. Comparing base (2c379c7) to head (fdc808c).
⚠️ Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
...ator/internal/ObfuscatedExtendedOpenTelemetry.java	33.33%	6 Missing ⚠️

❌ Your patch check has failed because the patch coverage (76.92%) 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    #7799      +/-   ##
============================================
- Coverage     90.16%   90.15%   -0.01%     
- Complexity     7202     7220      +18     
============================================
  Files           816      820       +4     
  Lines         21737    21790      +53     
  Branches       2130     2135       +5     
============================================
+ Hits          19599    19645      +46     
- Misses         1468     1474       +6     
- Partials        670      671       +1     

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[zeitlinger]

@jack-berg we missed that in the last PR on extended open telemetry

[jack-berg]

Nice catch. Thanks!

[jack-berg]

#nit: I think we should consider moving the logic from IncubatingUtil.obfuscatedOpenTelemetry into GlobalOpenTelemetry. Its a bit jarring to see code that looks like it will be using incubating code even when the incubator is not present. Also allows the standard ObfuscatedOpenTelemetry class to stay put here. It looks like its incubating when it lives as an inner class of IncubatingUtil.