Version 2:28.0.0-1 of neutron-vpnaas is marked for autoremoval from testing on Sat 03 Oct 2026. It depends (transitively) on python-libcst, python-pkginfo, affected by #1144936, #1146040. You should try to prevent the removal by fixing these RC bugs.
A new upstream version is available: 29.0.0.0b1high
A new upstream version 29.0.0.0b1 is available, you should consider packaging it.