Changelog for 2.277.2

Legend:

Community feedback:

Security fixes. (security advisory)
Fix help buttons in the draggable section (regression in 2.277.1). (issue 64972)
Security hardening against some CSRF attacks. (related upgrade guide entry)
Fix NoClassDefFoundError exception while executing ProcessTree.get(). (issue 62006)
Prevent Jenkins queue deadlock when cancelling tasks under certain conditions. (issue 64931)
Reduce logging of renamed API endpoint. (issue 65186)