Remove references to stream methods from Javadoc of PanacheEntityBase

[geoand]

The stream methods were removed in #29761

[quarkus-bot]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit c0f37e4.

✅ 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.

You can consult the Develocity build scans.

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Flaky tests - Develocity

⚙️ JVM Tests - JDK 21

📦 extensions/panache/hibernate-reactive-rest-data-panache/deployment

✖ io.quarkus.hibernate.reactive.rest.data.panache.deployment.repository.PanacheRepositoryResourcePutMethodTest.shouldUpdateComplexObject - History

• 1 expectation failed. JSON path name doesn't match. Expected: is "updated collection" Actual: empty collection - java.lang.AssertionError

java.lang.AssertionError: 
1 expectation failed.
JSON path name doesn't match.
Expected: is "updated collection"
  Actual: empty collection

	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:502)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486)