[BugFix] Fixed shape for MultiStep returns + Distributional loss #10526

Job	Run time
build-wheel-windows (3.8, 3.8)	2m 33s
build-wheel-windows (3.9, 3.9)	2m 54s
build-wheel-linux (3.8, cp38-cp38, --index-url https://download.pytorch.org/whl/cpu, "['cpu', '11...	30s
build-wheel-windows (3.10, 3.10.3)	3m 22s
build-wheel-linux (3.9, cp39-cp39, --index-url https://download.pytorch.org/whl/cpu, "['cpu', '11...	29s
build-wheel-windows (3.11, 3.11)	2m 35s
build-wheel-linux (3.10, cp310-cp310, --index-url https://download.pytorch.org/whl/cpu, "['cpu', ...	29s
build-wheel-linux (3.11, cp311-cp311, --index-url https://download.pytorch.org/whl/cpu, "['cpu', ...	32s
test-wheel	0s
test-wheel-windows (3.8)	5m 9s
test-wheel-windows (3.9)	4m 48s
test-wheel-windows (3.10)	5m 18s
test-wheel-windows (3.11)	5m 50s
	34m 29s

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