r/aws_ db_cluster: add read replica to domain on create

[johnsonaj]

Description

Relations

References

Output from Acceptance Testing

% make testacc PKG=rds TESTS="TestAccRDSInstance_ReplicateSourceDB_mssqlDomain"

make: Verifying source code with gofmt...
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go1.22.7 test ./internal/service/rds/... -v -count 1 -parallel 20 -run='TestAccRDSInstance_ReplicateSourceDB_mssqlDomain'  -timeout 360m
=== RUN   TestAccRDSInstance_ReplicateSourceDB_mssqlDomain
=== PAUSE TestAccRDSInstance_ReplicateSourceDB_mssqlDomain
=== CONT  TestAccRDSInstance_ReplicateSourceDB_mssqlDomain
--- PASS: TestAccRDSInstance_ReplicateSourceDB_mssqlDomain (5167.75s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/rds	5174.387s

[github-actions]

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[jar-b]

LGTM 🚀

[github-actions]

This functionality has been released in v5.69.0 of the Terraform AWS Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!