fix(freespace_planner): fix motion_velocity_smoother error while parking #28372

Job	Run time
clang-tidy-differential	20m 5s
prevent-no-label-execution / prevent-no-label-execution	1s
build-and-test-differential (humble)	21m 51s
build-and-test-differential (humble, -cuda)	22m 5s
	1h 4m 2s

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