Fix BasicCCDBManager::isCacheValid(ts) method

[shahor02]

No description provided.

[github-actions]

REQUEST FOR PRODUCTION RELEASES:
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[alibuild]

Error while checking build/O2/fullCI_slc9 for b3265f4 at 2026-03-27 05:36:

## sw/BUILD/O2Physics-latest/log
c++: fatal error: Killed signal terminated program cc1plus
c++: fatal error: Killed signal terminated program cc1plus
c++: fatal error: Killed signal terminated program cc1plus
ninja: build stopped: subcommand failed.

Full log here.

[ktf]

Error unrelated. Merging.