quarkus.hibernate-orm.enabled = false doesn't work when using Panache

[yrodiere]

Describe the bug

If we try to set quarkus.hibernate-orm-enabled = false in an application that uses Panache, we get this error when building:

[ERROR] Failed to execute goal io.quarkus.platform:quarkus-maven-plugin:2.13.2.Final:build (default) on project managed-server-ui-cli: Failed to build quarkus application: io.quarkus.builder.ChainBuildException: No producers for required item class io.quarkus.hibernate.orm.deployment.JpaModelBuildItem -> [Help 1]

That's probably caused by PanacheJpaCommonResourceProcessor assuming that JpaModelBuildItem is always present; it should use Optional<JpaModelBuildItem> instead. Or it should just disable itself when Hibernate ORM is disabled.

And we should have tests for that...

Expected behavior

No response

Actual behavior

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How to Reproduce?

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Output of uname -a or ver

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Output of java -version

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GraalVM version (if different from Java)

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Quarkus version or git rev

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Build tool (ie. output of mvnw --version or gradlew --version)

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Additional information

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[quarkus-bot]

/cc @FroMage, @Sanne, @gsmet, @loicmathieu