feat: Support VPC flow log cloudwatch log group class #495

Job	Run time
Collect workflow inputs	2s
Max TF pre-commit	1m 9s
Min TF pre-commit (.)	18s
Min TF pre-commit (./modules/vpc-endpoints)	21s
Min TF pre-commit (./examples/separate-route-tables)	1m 5s
Min TF pre-commit (./examples/network-acls)	20s
Min TF pre-commit (./examples/simple)	23s
Min TF pre-commit (./examples/secondary-cidr-blocks)	19s
Min TF pre-commit (./examples/ipam)	17s
Min TF pre-commit (./examples/complete)	24s
Min TF pre-commit (./examples/ipv6-only)	18s
Min TF pre-commit (./examples/outpost)	20s
Min TF pre-commit (./examples/manage-default-vpc)	18s
Min TF pre-commit (./examples/vpc-flow-logs)	18s
Min TF pre-commit (./examples/ipv6-dualstack)	16s
Min TF pre-commit (./examples/issues)	16s
	6m 24s

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