POTEL 2 - Promote OpenTelemetry Span attributes

[adinauer]

:scroll: Description

:bulb: Motivation and Context

Sentry features like "Requests" need certain attributes to work, e.g. span op should be "METHOD URL", response status code should be in span data.

:green_heart: How did you test it?

:pencil: Checklist

• [ ] I reviewed the submitted code.
• [ ] 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.
• [ ] 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.

:crystal_ball: Next steps

[github-actions[bot]]

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

	Messages
:book:	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 2 - Promote OpenTelemetry Span attributes ([#3402](https://github.com/getsentry/sentry-java/pull/3402))

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

Generated by :no_entry_sign: dangerJS against c1a10f46660238afe46529680fc71c85e63c7361

[github-actions[bot]]

Performance metrics :rocket:

	Plain	With Sentry	Diff
Startup time	471.35 ms	530.26 ms	58.91 ms
Size	1.70 MiB	2.29 MiB	598.04 KiB

Baseline results on branch: 8.x.x

Startup times

Revision	Plain	With Sentry	Diff
a373f020dc423eab02ff263f005494d00c57e2c4	372.81 ms	432.96 ms	60.15 ms
dcad3c9309c1849fe21f1d4dceaa0a7990477d1e	400.04 ms	479.67 ms	79.62 ms
3e1e45bf7179435cf8da8c7d2ee1511bb585485e	373.72 ms	439.33 ms	65.60 ms
9428efa5bd61a12862f4cc5e22dce8597e464893	389.31 ms	481.67 ms	92.37 ms
34db09fa45d95fbd4a0756cae22791b83c399e7d	362.68 ms	443.02 ms	80.34 ms
6f168826c814df0d6651918b2f7ff0e7ece4c639	426.16 ms	494.15 ms	67.99 ms
9f2c8552fd8bf28926a24cb82be26f6a48a50183	424.20 ms	506.34 ms	82.14 ms

App size

Revision	Plain	With Sentry	Diff
a373f020dc423eab02ff263f005494d00c57e2c4	1.70 MiB	2.28 MiB	596.35 KiB
dcad3c9309c1849fe21f1d4dceaa0a7990477d1e	1.70 MiB	2.28 MiB	596.35 KiB
3e1e45bf7179435cf8da8c7d2ee1511bb585485e	1.70 MiB	2.28 MiB	596.32 KiB
9428efa5bd61a12862f4cc5e22dce8597e464893	1.70 MiB	2.28 MiB	597.68 KiB
34db09fa45d95fbd4a0756cae22791b83c399e7d	1.70 MiB	2.28 MiB	596.37 KiB
6f168826c814df0d6651918b2f7ff0e7ece4c639	1.70 MiB	2.28 MiB	596.37 KiB
9f2c8552fd8bf28926a24cb82be26f6a48a50183	1.70 MiB	2.28 MiB	596.32 KiB