Fix spell cooldown for guardian pets
Merge pull request #13558 from MrSmite/3.3.5

Fix spell cooldown for guardian pets
Fixes https://github.com/TrinityCore/TrinityCore/issues/13450 , closes https://github.com/TrinityCore/TrinityCore/pull/13452 and https://github.com/TrinityCore/TrinityCore/pull/13558