Sweeping !33835 from 21.3 to 21.9. Change from Raw Pointer to Unique Pointer in MMClusterBuilder and MmRdoToPrepDataTool

Atlas Nightlybuildrequested to merge
cherry-pick-148cec7541-21.9 into 21.9

Change from Raw Pointer to Unique Pointer in MMClusterBuilder and MmRdoToPrepDataTool

See merge request !33835 (merged)

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