Upgrade Hipparchus baseline to Java 21
Orekit 14 migrated its baseline to Java 21. Hipparchus, as a core dependency, should follow to keep the two projects' minimum supported Java version aligned.
See the discussion on the Orekit forum: https://forum.orekit.org/t/next-hipparchus-release/5248/6
Upgrade Hipparchus baseline to Java 21
Orekit 14 migrated its baseline to Java 21. Hipparchus, as a core dependency, should follow to keep the two projects' minimum supported Java version aligned.
See the discussion on the Orekit forum: https://forum.orekit.org/t/next-hipparchus-release/5248/6