Lock appropriate tree for media operations

[rbottema]

The MediaService currently locks the ContentTree for GetPagedOfType(s) operations, but it's querying the MediaTree. This ensures we lock the correct tree.

[github-actions]

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[Copilot]

Pull Request Overview

Fixes the lock used for media queries to ensure the MediaTree is locked rather than the ContentTree.

• Updated the read lock in GetPagedOfType to use MediaTree
• Updated the read lock in GetPagedOfTypes to use MediaTree

Comments suppressed due to low confidence (2)

src/Umbraco.Core/Services/MediaService.cs:421

• Consider adding a unit or integration test to verify that GetPagedOfType acquires the MediaTree lock as intended, preventing regressions in the locking behavior.

scope.ReadLock(Constants.Locks.MediaTree);

src/Umbraco.Core/Services/MediaService.cs:444

• Consider adding a unit or integration test to verify that GetPagedOfTypes acquires the MediaTree lock as intended, preventing regressions in the locking behavior.

scope.ReadLock(Constants.Locks.MediaTree);

[AndyButland]

Thanks @rbottema - looks a clear and obvious fix, will include for 13.10.