Switch openJDK with eclipse-temurin-21 in docker file

[aviavraham]

infinispan requires Java 17, and since OpenJDK will be obsolete soon we are moving the operator to use Eclipse Temurin

[openshift-ci[bot]]

Hi @aviavraham. Thanks for your PR.

I'm waiting for a infinispan member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes-sigs/prow](https://github.com/kubernetes-sigs/prow/issues/new?title=Prow%20issue:) repository.

[Crumby]

/ok-to-test

[calebevans]

/test

[openshift-ci[bot]]

@calebevans: No presubmit jobs available for infinispan/infinispan-operator@main

In response to [this](https://github.com/infinispan/infinispan-operator/pull/2137#issuecomment-2271549031): >/test Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes-sigs/prow](https://github.com/kubernetes-sigs/prow/issues/new?title=Prow%20issue:) repository.

[Crumby]

@ryanemerson This one can be merged, the changes were tested on OpenShift CI

[ryanemerson]

Thanks @aviavraham @Crumby

[aviavraham]

thanks @ryanemerson @Crumby