[PATCH v2 0/5] MR5463: mfreadwrite: Test and fix some reference leaks.

[Rémi Bernon]

These were probably the cause of crashes of https://gitlab.winehq.org/wine/wine/-/merge_requests/5459 runs on 32bit Linux VMs. Also included some test fixes that were in https://gitlab.winehq.org/wine/wine/-/merge_requests/5459.

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  v2: mfreadwrite/reader: Avoid leaking the stream transform service MFT.
      mfreadwrite/tests: Shutdown the test stream event queues on source shutdown.
      mfreadwrite/tests: Avoid using MFCreateMediaBufferFromMediaType.
      mfreadwrite/tests: Do not accept MFVideoFormat_RGB32 in the test transform.
      mf/tests: Fix printf format warning.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/5463