Ai challenge and cursor support, preparing ctf-party release updates

New spring boot version

Release 1.11.2: 55 challenges

Release 1.11.1: challenge 53, Spring boot upgrade and many more

Release 1.20.3: Bugfixes

Release 1.20.2: CDS version and LCM

Renovate, Java 23 and challenge51

50challenges and ctfd support

Release 1.9.1

Release 1.9.0