fix: Allow managing `allocated_storage` for replicas #329

Job	Run time
Collect workflow inputs	2s
Max TF pre-commit	2m 17s
Min TF pre-commit (.)	22s
Min TF pre-commit (./examples/cross-region-replica-postgres)	20s
Min TF pre-commit (./examples/complete-oracle)	24s
Min TF pre-commit (./examples/replica-postgres)	17s
Min TF pre-commit (./examples/groups)	20s
Min TF pre-commit (./examples/complete-mssql)	20s
Min TF pre-commit (./examples/blue-green-deployment)	19s
Min TF pre-commit (./examples/complete-postgres)	22s
Min TF pre-commit (./examples/replica-mysql)	16s
Min TF pre-commit (./examples/role-association-postgres)	26s
Min TF pre-commit (./examples/s3-import-mysql)	18s
Min TF pre-commit (./examples/enhanced-monitoring)	18s
Min TF pre-commit (./examples/complete-mysql)	16s
Min TF pre-commit (./modules/db_subnet_group)	17s
Min TF pre-commit (./modules/db_parameter_group)	20s
Min TF pre-commit (./modules/db_instance_automated_backups_replication)	14s
Min TF pre-commit (./modules/db_instance)	17s
Min TF pre-commit (./modules/db_instance_role_association)	18s
Min TF pre-commit (./modules/db_option_group)	15s
	8m 18s

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