chore(ci): add JDK 25 to CI

[bednar]

• CI configuration: Updated the maven-image matrix to remove cimg/openjdk:20.0 and add cimg/openjdk:25.0, ensuring the build is tested against newer Java versions.

Checklist

• CHANGELOG.md updated
• Rebased/mergeable
• A test has been added if appropriate
• Tests pass
• Commit messages are conventional
• Sign CLA (if not already signed)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.22%. Comparing base (057604a) to head (43d8938).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #313   +/-   ##
=======================================
  Coverage   87.22%   87.22%           
=======================================
  Files          20       20           
  Lines        1284     1284           
  Branches      213      213           
=======================================
  Hits         1120     1120           
  Misses         75       75           
  Partials       89       89           

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