Fixed error in render function for CustomActionMaskedEnvironment Clas… #1127

Job	Run time
agilerl-tutorial-test (3.9, AgileRL)	12m 57s
agilerl-tutorial-test (3.10, AgileRL)	15m 59s
agilerl-tutorial-test (3.11, AgileRL)	16m 20s
tutorial-test (3.8, Tianshou)	3m 16s
tutorial-test (3.8, CustomEnvironment)	27s
tutorial-test (3.8, CleanRL)	5m 41s
tutorial-test (3.8, SB3/kaz)	4m 31s
tutorial-test (3.8, SB3/waterworld)	8m 22s
tutorial-test (3.8, SB3/connect_four)	2m 11s
tutorial-test (3.8, SB3/test)	1m 55s
tutorial-test (3.9, Tianshou)	3m 23s
tutorial-test (3.9, CustomEnvironment)	26s
tutorial-test (3.9, CleanRL)	5m 26s
tutorial-test (3.9, SB3/kaz)	4m 22s
tutorial-test (3.9, SB3/waterworld)	8m 8s
tutorial-test (3.9, SB3/connect_four)	2m 11s
tutorial-test (3.9, SB3/test)	2m 4s
tutorial-test (3.10, Tianshou)	3m 39s
tutorial-test (3.10, CustomEnvironment)	29s
tutorial-test (3.10, CleanRL)	7m 49s
tutorial-test (3.10, SB3/kaz)	4m 44s
tutorial-test (3.10, SB3/waterworld)	7m 56s
tutorial-test (3.10, SB3/connect_four)	2m 13s
tutorial-test (3.10, SB3/test)	2m 5s
tutorial-test (3.11, Tianshou)	3m 22s
tutorial-test (3.11, CustomEnvironment)	29s
tutorial-test (3.11, CleanRL)	7m 7s
tutorial-test (3.11, SB3/kaz)	4m 43s
tutorial-test (3.11, SB3/waterworld)	8m 4s
tutorial-test (3.11, SB3/connect_four)	2m 0s
tutorial-test (3.11, SB3/test)	2m 8s
	2h 34m 27s

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