feat!: Add ability to configure IPAM exclusively for IPv4 or IPv6 #625

Job	Run time
Collect workflow inputs	3s
Max TF pre-commit	1m 6s
Min TF pre-commit (.)	24s
Min TF pre-commit (./examples/ipam)	25s
Min TF pre-commit (./examples/complete)	22s
Min TF pre-commit (./examples/simple)	22s
Min TF pre-commit (./examples/issues)	22s
Min TF pre-commit (./examples/vpc-flow-logs)	23s
Min TF pre-commit (./examples/manage-default-vpc)	21s
Min TF pre-commit (./examples/outpost)	22s
Min TF pre-commit (./examples/separate-route-tables)	24s
Min TF pre-commit (./examples/secondary-cidr-blocks)	24s
Min TF pre-commit (./examples/ipv6-dualstack)	24s
Min TF pre-commit (./examples/ipv6-only)	22s
Min TF pre-commit (./examples/network-acls)	20s
Min TF pre-commit (./modules/vpc-endpoints)	24s
	6m 28s

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