Add Python 3.12 support (#1226) #1115

Job	Run time
agilerl-tutorial-test (3.9, AgileRL)	15m 9s
agilerl-tutorial-test (3.10, AgileRL)	15m 45s
agilerl-tutorial-test (3.11, AgileRL)	15m 19s
tutorial-test (3.8, Tianshou)	3m 41s
tutorial-test (3.8, CustomEnvironment)	28s
tutorial-test (3.8, CleanRL)	5m 24s
tutorial-test (3.8, SB3/kaz)	4m 23s
tutorial-test (3.8, SB3/waterworld)	8m 15s
tutorial-test (3.8, SB3/connect_four)	4m 16s
tutorial-test (3.8, SB3/test)	2m 22s
tutorial-test (3.9, Tianshou)	3m 22s
tutorial-test (3.9, CustomEnvironment)	27s
tutorial-test (3.9, CleanRL)	5m 9s
tutorial-test (3.9, SB3/kaz)	4m 26s
tutorial-test (3.9, SB3/waterworld)	7m 32s
tutorial-test (3.9, SB3/connect_four)	2m 31s
tutorial-test (3.9, SB3/test)	2m 9s
tutorial-test (3.10, Tianshou)	3m 20s
tutorial-test (3.10, CustomEnvironment)	27s
tutorial-test (3.10, CleanRL)	6m 46s
tutorial-test (3.10, SB3/kaz)	5m 8s
tutorial-test (3.10, SB3/waterworld)	7m 46s
tutorial-test (3.10, SB3/connect_four)	2m 39s
tutorial-test (3.10, SB3/test)	2m 2s
tutorial-test (3.11, Tianshou)	3m 12s
tutorial-test (3.11, CustomEnvironment)	29s
tutorial-test (3.11, CleanRL)	6m 55s
tutorial-test (3.11, SB3/kaz)	4m 14s
tutorial-test (3.11, SB3/waterworld)	7m 39s
tutorial-test (3.11, SB3/connect_four)	3m 0s
tutorial-test (3.11, SB3/test)	2m 51s
	2h 37m 6s

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