feat: Add support for `cloudwatch_log_group_class` #41

Job	Run time
Collect workflow inputs	6s
Max TF pre-commit	36s
Min TF pre-commit (.)	28s
Min TF pre-commit (./examples/serverless)	22s
Min TF pre-commit (./examples/basic)	20s
Min TF pre-commit (./examples/connect)	24s
Min TF pre-commit (./examples/complete)	18s
Min TF pre-commit (./modules/serverless)	20s
	2m 54s

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