feat: Add Motif-Video model and pipelines #38414

Job	Run time
check_code_quality	31s
check_repository_consistency	31s
Hub tests for models, schedulers, and pipelines	1m 0s
Fast PyTorch Models & Schedulers CPU tests	8m 11s
Fast PyTorch Pipeline CPU tests	16m 1s
LoRA tests with PEFT main	7m 18s
PyTorch Example CPU tests	19m 23s
	52m 55s

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