[worker] warn on invalid resource class config when setting GRADLE_OPTS

[sswrk]

Why

This issue expo/expo#45213 is reporting that the max heap size in Gradle options is set to an incorrect value when the resource class is large (should be -Xmx8g, is -Xmx4g).

I suspect the worker is receiving an empty or incorrect resourceClass config value, as we silently fallback to 4g in such cases. This PR adds Sentry reporting to enable us to easily track such cases. Reporting is turned off in Environment.TEST.

How

Report a sentry warning on:

• No config.resourceClass set
• Unknown config.resourceClass

The reporting is plugged just before determining the Gradle options getBuildEnv in packages/worker/src/env.ts.

Test Plan

CI passes.

[github-actions]

⏩ The changelog entry check has been skipped since the "no changelog" label is present.

[codecov]

Codecov Report

❌ Patch coverage is 12.50000% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 55.96%. Comparing base (8229dc8) to head (3c6fa5f).

Files with missing lines	Patch %	Lines
packages/worker/src/env.ts	12.50%	5 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3660      +/-   ##
==========================================
- Coverage   55.97%   55.96%   -0.00%     
==========================================
  Files         866      866              
  Lines       37312    37320       +8     
  Branches     7759     7761       +2     
==========================================
+ Hits        20882    20883       +1     
- Misses      16334    16339       +5     
- Partials       96       98       +2     

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[sjchmiela]

Sssso resource classes is an outdated concept, or a concept we're trying to move away from. For instance, workflow-orchestration has never and will never provide the resourceClass in config.

Maybe we want to instead of relying on resource class, execute some command to learn the free memory on the instance and adjust GRADLE_OPTS from there?