[BugFix] Fix SACLoss target_entropy="auto" ignoring action space dime… #7341

Job	Run time
tests-cpu (3.13) / linux-job	43m 59s
tests-gpu-distributed (3.12, 13.0) / linux-job	27m 26s
tests-gpu (3.12, 13.0) / linux-job	1h 16m 23s
tests-cpu (3.12) / linux-job	47m 36s
tests-olddeps (3.9, 11.6) / linux-job	57m 39s
tests-cpu (3.14) / linux-job	32m 37s
tests-stable-gpu-distributed (3.12, 13.0) / linux-job	27m 31s
test-setup-minimal (3.14) / linux-job	5m 30s
tests-stable-gpu (3.12, 13.0) / linux-job	1h 17m 12s
tests-cpu (3.11) / linux-job	45m 2s
tests-optdeps (3.12, 13.0) / linux-job	56m 14s
tests-cpu (3.10) / linux-job	46m 46s
test-setup-minimal (3.10) / linux-job	5m 20s
	9h 9m 15s

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