[Feature] auto_wrap_envs in PEnv #4646

Job	Run time
generate-matrix / generate	5s
pytorch/rl (pytorch/rl, test/smoke_test.py, torchrl, .github/scripts/pre-build-script.sh) / build-wheel-py3_10-cpu-aarch64	6m 1s
pytorch/rl (pytorch/rl, test/smoke_test.py, torchrl, .github/scripts/pre-build-script.sh) / upload / upload-wheel-py3_10-cpu-aarch64	21s
	6m 27s

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