POTEL 65 - Replace bool with enum for OpenTelemetryUtil mode

[adinauer]

📜 Description

Replace bool with enum for OpenTelemetryUtil mode

💡 Motivation and Context

The bool did not allow us to distinguish between agentless with or without spring. The distinction is needed as the opentelemetry-spring-boot-starter has some of the auto instrumentation available.

💚 How did you test it?

📝 Checklist

• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• I updated the wizard if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.

🔮 Next steps

[github-actions]

	Fails
🚫	Please consider adding a changelog entry for the next release.

	Messages
📖	Do not forget to update Sentry-docs with your feature once the pull request gets approved.

Instructions and example for changelog

Please add an entry to CHANGELOG.md to the "Unreleased" section. Make sure the entry includes this PR's number.

Example:

## Unreleased

- POTEL 65 - Replace bool with enum for `OpenTelemetryUtil` mode ([#3988](https://github.com/getsentry/sentry-java/pull/3988))

If none of the above apply, you can opt out of this check by adding #skip-changelog to the PR description.

Generated by 🚫 dangerJS against 33877cc

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	416.04 ms	430.04 ms	14.00 ms
Size	1.65 MiB	2.31 MiB	676.08 KiB

Previous results on branch: feat/otelutil-mode

Startup times

Revision	Plain	With Sentry	Diff
cd7ef18	421.81 ms	471.44 ms	49.63 ms
f7eeba8	438.38 ms	475.12 ms	36.74 ms

App size

Revision	Plain	With Sentry	Diff
cd7ef18	1.65 MiB	2.31 MiB	676.08 KiB
f7eeba8	1.65 MiB	2.31 MiB	676.08 KiB

[lbloder]

LGTM 👍 , barring some open questions on whether we can get rid of that OpenTelemetryUtil.applyOpenTelemetryOptions call altogether