Try to debug new oracle action version

[koppor]

Try to debug new oracle setup-java action.

It runs on Java 21 - https://github.com/oracle-actions/setup-java/releases/tag/v1.3.4

Mandatory checks

• Change in CHANGELOG.md described in a way that is understandable for the average user (if applicable)
• Tests created for changes (if applicable)
• Manually tested changed features in running JabRef (always required)
• Screenshots added in PR description (for UI changes)
• Checked developer's documentation: Is the information available and up to date? If not, I outlined it in this pull request.
• Checked documentation: Is the information available and up to date? If not, I created an issue at https://github.com/JabRef/user-documentation/issues or, even better, I submitted a pull request to the documentation repository.

[koppor]

This downgrades the action to the last one without requirement to JDK21 (which is unavailable on BuildJet)

[koppor]

Alternatively, we could set JAVA_HOME_21_arm64 in the workflow to the JDK17.

[koppor]

Security: For higher security, we could pin the versions to SHA https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-third-party-actions. - Not sure, how this works with dependabot.

[koppor]

Drawack: We cannot run on ARM64 with that - oracle-actions/setup-java#73

[github-actions]

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