Backport hide EndUserSpanProcessor integration

[brunobat]

Backport implementation mitigating: #39667

[quarkus-bot]

/cc @radcortez (opentelemetry)

[brunobat]

This should be also ported to 3.8.x if possible.

[michalvavrik]

Changes are alright. I understand why it is desirable to keep the feature, just wanna note that this feature became even less reliable in recent release due to CDI request scope activation changes, so users might be double surprised it works worse than before. Thanks for changes.

[quarkus-bot]

Status for workflow Quarkus Documentation CI

This is the status report for running Quarkus Documentation CI on commit a1f4fab.

✅ The latest workflow run for the pull request has completed successfully.

It should be safe to merge provided you have a look at the other checks in the summary.

⚠️ There are other workflow runs running, you probably need to wait for their status before merging.

[quarkus-bot]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit a1f4fab.

✅ The latest workflow run for the pull request has completed successfully.

It should be safe to merge provided you have a look at the other checks in the summary.

---

Flaky tests - Develocity

⚙️ JVM Tests - JDK 17 Windows

📦 extensions/websockets-next/server/deployment

✖ io.quarkus.websockets.next.test.broadcast.BroadcastOnOpenTest.testLoMultiBidi - History

• Messages: [c2] ==> expected: <true> but was: <false> - org.opentest4j.AssertionFailedError

org.opentest4j.AssertionFailedError: Messages: [c2] ==> expected: <true> but was: <false>
	at org.junit.jupiter.api.AssertionFailureBuilder.build(AssertionFailureBuilder.java:151)
	at org.junit.jupiter.api.AssertionFailureBuilder.buildAndThrow(AssertionFailureBuilder.java:132)
	at org.junit.jupiter.api.AssertTrue.failNotTrue(AssertTrue.java:63)
	at org.junit.jupiter.api.AssertTrue.assertTrue(AssertTrue.java:36)
	at org.junit.jupiter.api.Assertions.assertTrue(Assertions.java:214)
	at io.quarkus.websockets.next.test.broadcast.BroadcastOnOpenTest.assertBroadcast(BroadcastOnOpenTest.java:98)
	at io.quarkus.websockets.next.test.broadcast.BroadcastOnOpenTest.testLoMultiBidi(BroadcastOnOpenTest.java:50)

[github-actions]

🙈 The PR is closed and the preview is expired.