IQSS/12020 Payara7 Java21 update

[qqmyers]

What this PR does / why we need it: This PR updates Dataverse to be compatible with Payara 7.2025.2 and Java 21. Aside from the doc changes (payara6 -> payara7 etc.) the changes were relatively minor - a couple deprecated annotations we use (NotEmpty, NotBlank) were removed and replaced with new ones, and some of the EE related classes we mock in tests now have a few more methods that have to be overridden.

Which issue(s) this PR closes:

• Closes Payara 6 community edition has reached its End Of Life #12020
• Closes bump to OpenJDK 21 (24?) #11585

Special notes for your reviewer: Someone will need to check the Docker related compose files and documentation to make the relevant updates to Payara and Java. I tried to avoid updating things related to the Keycloak container since it shouldn't need to update to Java 21.

Suggestions on how to test this: Undeploy the current Dataverse, install Payara 7.2025.2 and Java 21, deploy this branch, regression test.

Does this PR introduce a user interface change? If mockups are available, please link/include them here:

Is there a release notes update needed for this change?: included.

Additional documentation:

[coveralls]

coverage: 24.336%. remained the same
when pulling df2fd0a on QualitativeDataRepository:IQSS/12020-Payara7_Java21_update
into 9a5ca93 on IQSS:develop.

[qqmyers]

Apparently Payara 7.x has a minor bug - any API call with a colon in it fails. payara/Payara#7777 - looks like we need to wait for 7.2025.3 or 7.2026.1 +

[qqmyers]

Apparently Payara 7.x has a minor bug - any API call with a colon in it fails. payara/Payara#7777 - looks like we need to wait for 7.2025.3 or 7.2026.1 +

There's been an unofficial report that this is fixed in 7.2026.1 - can now move forward and try that.

[wshahn]

TASK [dataverse : copy warfile over release] ***********************************
fatal: [localhost]: FAILED! => {"changed": false, "msg": "Source /opt/dataverse/dataverse/target/dataverse-6.8.war not found"}

@qqmyers Hit this when building the warfile, could you please refresh your branch when you get a chance? Thanks!