Fix for cm handles stuck in LOCKED during registration

Fix for cm handles stuck in LOCKED during registration

- Additional Error logging when cm handles fail module sync
- Swallow already defined exception upon schema and/or anchor creation
- Updated integration test to try to reproduce the problem (but couldn't)
- Ignored integration tests that depend/affected by race conditions
  (they are useful for troubleshooting but not for pipeline checks)
- Removed last remnants of springboot retry annotation option (incl dependencies)

Issue-ID: CPS-2576
Change-Id: I910e802268332f955134c043bd1b46a7ec57233b
Signed-off-by: ToineSiebelink <toine.siebelink@est.tech>