Upgrade to Hibernate ORM 6.6.3.Final

[yrodiere]

Supersedes #44378, #44386

Fixes #7462
Fixes #43056
Fixes #43296
Fixes #44454

Creating as draft since Hibernate ORM 6.6.3.Final hasn't been released yet.

We can't really upgrade to Hibernate ORM 6.6.2.Final, because the fix for HHH-16572 is causing problems, failing one test and more importantly probably breaking some user applications with unclear error messages -- possibly at runtime.

We decided to work on the following fixes/improvement in ORM, and upgrade to 6.6.3.Final directly, assuming they get merged in that release:

• HHH-18833 HHH-18833 Introduce EnhancementContext#getUnsupportedEnhancementStrategy hibernate/hibernate-orm#9222
• HHH-18832 HHH-18832 Bytecode enhancement skipped for entities with "compute-only" @Transient properties hibernate/hibernate-orm#9223

NOTE: HHH-16572 introduces a check for whether bytecode enhancement is supported for a given class. If that check is not reliable enough, we might want to change io.quarkus.hibernate.orm.deployment.integration.QuarkusEnhancementContext#getUnsupportedEnhancementStrategy to return LEGACY -- which would revert to the (dangerous, but backwards-compatible) behavior from Hibernate ORM 6.6.1.Final and earlier. I'm thinking about Quarkus 3.15 LTS in particular -- though we'll have to balance the danger of that earlier behavior against the danger of the check being unreliable.

[quarkus-bot]

/cc @gsmet (hibernate-orm)

[yrodiere]

Thanks for the review.

@gsmet note I created a PR for the backport, with a small change in the "unsupported enhancement strategy": #44658

EDIT: Actually this will be #44703

[quarkus-bot]

Status for workflow Quarkus CI

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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

📦 integration-tests/virtual-threads/grpc-virtual-threads

✖ io.quarkus.grpc.example.streaming.VertxVirtualThreadTest.testStreamingOutputCall - History

• INTERNAL: Half-closed without a request - io.grpc.StatusRuntimeException

io.grpc.StatusRuntimeException: INTERNAL: Half-closed without a request
	at io.grpc.Status.asRuntimeException(Status.java:533)
	at io.grpc.stub.ClientCalls$BlockingResponseStream.hasNext(ClientCalls.java:631)
	at java.base/java.util.Iterator.forEachRemaining(Iterator.java:132)
	at io.quarkus.grpc.example.streaming.VirtualThreadTestBase.testStreamingOutputCall(VirtualThreadTestBase.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
	at io.quarkus.test.junit.QuarkusTestExtension.runExtensionMethod(QuarkusTestExtension.java:967)
	at io.quarkus.test.junit.QuarkusTestExtension.interceptTestMethod(QuarkusTestExtension.java:817)