Add support for otelconf v1

[dmathieu]

This adds support for the stable/v1 version of otelconf, with a migration from v0.3.0 to v1 similar to what was done for v0.2 to v0.3.

[dmathieu]

This change is required, as TracerConfiguratorDevelopment includes a / in its tag.
https://github.com/open-telemetry/opentelemetry-go-contrib/blob/590c561a7efe36cb3ceff70d199be38af8e647a9/otelconf/generated_config.go#L2254C2-L2254C31

[codeboten]

This won't be required if we can manage to get the experimental functionality into otelconf/x as per open-telemetry/opentelemetry-go-contrib#8529

[codecov]

Codecov Report

❌ Patch coverage is 35.71429% with 171 lines in your changes missing coverage. Please review.
✅ Project coverage is 91.03%. Comparing base (ec18380) to head (bb1f171).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...try/otelconftelemetry/internal/migration/v0.3.0.go	11.83%	146 Missing and 3 partials ⚠️
...lemetry/otelconftelemetry/internal/migration/v1.go	48.78%	19 Missing and 2 partials ⚠️
service/internal/promtest/server_util.go	90.00%	1 Missing ⚠️

❌ Your patch check has failed because the patch coverage (35.71%) is below the target coverage (95.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #14792      +/-   ##
==========================================
- Coverage   91.39%   91.03%   -0.37%     
==========================================
  Files         695      696       +1     
  Lines       44400    44609     +209     
==========================================
+ Hits        40581    40609      +28     
- Misses       2686     2858     +172     
- Partials     1133     1142       +9     

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[codspeed-hq]

Merging this PR will not alter performance

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

✅ 7 untouched benchmarks
⏩ 76 skipped benchmarks¹

---

_{Comparing dmathieu:upgrade-otelconf (c643364) with main (95b4d69)}

Footnotes

1. 76 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 14 days.

[dmathieu]

Closing this. I naively assumed it would be easier. We need to do some prep work and deprecations before we can do this upgrade.