HSEARCH-4997 Compatibility with Hibernate ORM 6.4

[yrodiere]

https://hibernate.atlassian.net/browse/HSEARCH-4997

[yrodiere]

This is long overdue... I'll run some tests locally to check it works... somewhat...

[sonarcloud]

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[yrodiere]

I ran this locally:

mvn clean verify -Pdependency-update -Dversion.org.hibernate.orm=6.4.0-SNAPSHOT -pl "$(./ci/list-dependent-integration-tests.sh hibernate-search-mapper-orm)"

Results:

[INFO] Hibernate Search ITs - Migration Helper - ORM ...... FAILURE [02:12 min]
[INFO] Hibernate Search ITs - ORM - Spring ................ SUCCESS [ 44.978 s]
[INFO] Hibernate Search ITs - Spring Repackaged JAR Model . SUCCESS [  1.203 s]
[INFO] Hibernate Search ITs - Spring Repackaged JAR Application SUCCESS [  7.823 s]
[INFO] Hibernate Search ITs - Showcase - Library .......... SUCCESS [ 40.799 s]
[INFO] Hibernate Search ITs - Java - Modules - ORM/Elasticsearch SUCCESS [ 17.189 s]
[INFO] Hibernate Search ITs - Java - Modules - ORM/Lucene . SUCCESS [  4.439 s]
[INFO] Hibernate Search ITs - Java - Modules - ORM/Elasticsearch outbox polling SUCCESS [ 20.137 s]
[INFO] Hibernate Search Documentation ..................... SUCCESS [04:55 min]

There was only one test failure, and I will address it as https://hibernate.atlassian.net/browse/HSEARCH-5000