[WIP] Upgrade to Hibernate ORM 6.6 / Search 7.2

[yrodiere]

Work in progress; I need to run tests and I suspect neither Search nor Reactive are compatible in these versions.

Based on #41358 , which must be merged first.

Here's what we will need to add to the migration guide:

== JPA / Hibernate ORM

=== Upgrade to Hibernate ORM 6.6

The Quarkus extensions for Hibernate ORM was upgraded to Hibernate ORM 6.6.

Hibernate ORM 6.6 is largely backwards-compatible with Hibernate ORM 6.5,
but a few checks have been tightened, so applications with incorrect configuration, mapping, or queries
may now throw exceptions where they used to experience only warnings and malfunctions.

In particular:

* [Merging detects invalid creation attempts](https://docs.jboss.org/hibernate/orm/6.6/migration-guide/migration-guide.html#merge-versioned-deleted):
passing to `merge` an entity with a `@GeneratedValue` identifier or a `@Version` property set to a non-null value
will now fail, whereas it used to (incorrectly) create the entity in database.

See the https://github.com/hibernate/hibernate-orm/blob/6.6/migration-guide.adoc[Hibernate ORM 6.6 migration guide] for more details.

[quarkus-bot[bot]]

/cc @gsmet (hibernate-orm)

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This is the status report for running Quarkus CI on commit 8737cedf2cdb58cd93af050625d9cce60ef01d44.

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Flaky tests - Develocity

:gear: JVM Tests - JDK 17

:package: integration-tests/opentelemetry

✖ io.quarkus.it.opentelemetry.MetricsTest.directCounterTest - History

• Condition with Lambda expression in io.quarkus.it.opentelemetry.MetricsTest was not fulfilled within 5 seconds. - org.awaitility.core.ConditionTimeoutException

org.awaitility.core.ConditionTimeoutException: Condition with Lambda expression in io.quarkus.it.opentelemetry.MetricsTest was not fulfilled within 5 seconds.
	at org.awaitility.core.ConditionAwaiter.await(ConditionAwaiter.java:167)
	at org.awaitility.core.CallableCondition.await(CallableCondition.java:78)
	at org.awaitility.core.CallableCondition.await(CallableCondition.java:26)
	at org.awaitility.core.ConditionFactory.until(ConditionFactory.java:1006)
	at org.awaitility.core.ConditionFactory.until(ConditionFactory.java:975)
	at io.quarkus.it.opentelemetry.MetricsTest.directCounterTest(MetricsTest.java:54)
	at java.base/java.lang.reflect.Method.invoke(Method.java:569)

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:gear: JVM Tests - JDK 21

:package: integration-tests/opentelemetry

✖ io.quarkus.it.opentelemetry.MetricsTest.directCounterTest - History

• Condition with Lambda expression in io.quarkus.it.opentelemetry.MetricsTest was not fulfilled within 5 seconds. - org.awaitility.core.ConditionTimeoutException

org.awaitility.core.ConditionTimeoutException: Condition with Lambda expression in io.quarkus.it.opentelemetry.MetricsTest was not fulfilled within 5 seconds.
	at org.awaitility.core.ConditionAwaiter.await(ConditionAwaiter.java:167)
	at org.awaitility.core.CallableCondition.await(CallableCondition.java:78)
	at org.awaitility.core.CallableCondition.await(CallableCondition.java:26)
	at org.awaitility.core.ConditionFactory.until(ConditionFactory.java:1006)
	at org.awaitility.core.ConditionFactory.until(ConditionFactory.java:975)
	at io.quarkus.it.opentelemetry.MetricsTest.directCounterTest(MetricsTest.java:54)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)

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:gear: Native Tests - HTTP

:package: integration-tests/rest-client-reactive

✖ io.quarkus.it.rest.client.BasicTestIT.shouldCreateClientSpans - History

• expected: <1> but was: <2> - org.opentest4j.AssertionFailedError

org.opentest4j.AssertionFailedError: expected: <1> but was: <2>
	at io.quarkus.it.rest.client.BasicTest.shouldCreateClientSpans(BasicTest.java:216)
	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
	at io.quarkus.test.junit.QuarkusTestExtension.interceptTestMethod(QuarkusTestExtension.java:821)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)

[gsmet]

I rebased, updated to the Final versions and force pushed.

[marko-bekhta]

thanks! 🎉

[gsmet]

I added the content written by Yoann to the migration guide.

[quarkus-bot[bot]]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit 09706de2ee258aada79993cea7b1b4f3ab42c22b.

:white_check_mark: 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.