Changes between #368 and #369

#369 (Apr 2, 2025, 1:51:49 AM)

1. Add changelog for 5.6.15 release — d.lindner / githubweb
2. Fix release date — noreply / githubweb
3. update dependencies — noreply / githubweb
4. Add version.properties to etc/omero.properties — snoopycrimecop / githubweb