r/aws_amplify_domain_association: add enable_auto_sub_domain attribute

[melamity]

Description

Adds a new enable_auto_sub_domain attribute which matches the API and the rest of the schema (schema uses sub_domain already), which was something requested in the issue linked below. Added support for updating, as well as reading this value back from the API.

Relations

Closes #20495

References

N/A

Output from Acceptance Testing

Couldn't run the acceptance tests in the end - something seemed to stop me from running them (not related to my changes I think).

[github-actions]

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[chrisjsimpson]

Thanks @megubyte ☺️

[ewbankkit]

LGTM 🚀.

% AMPLIFY_DOMAIN_NAME=example.com make testacc TESTARGS='-run=TestAccAmplify_serial/DomainAssociation' PKG=amplify
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./internal/service/amplify/... -v -count 1 -parallel 20  -run=TestAccAmplify_serial/DomainAssociation -timeout 180m
=== RUN   TestAccAmplify_serial
=== PAUSE TestAccAmplify_serial
=== CONT  TestAccAmplify_serial
=== RUN   TestAccAmplify_serial/DomainAssociation
=== RUN   TestAccAmplify_serial/DomainAssociation/basic
=== RUN   TestAccAmplify_serial/DomainAssociation/disappears
=== RUN   TestAccAmplify_serial/DomainAssociation/update
--- PASS: TestAccAmplify_serial (215.94s)
    --- PASS: TestAccAmplify_serial/DomainAssociation (215.94s)
        --- PASS: TestAccAmplify_serial/DomainAssociation/basic (67.18s)
        --- PASS: TestAccAmplify_serial/DomainAssociation/disappears (35.07s)
        --- PASS: TestAccAmplify_serial/DomainAssociation/update (113.68s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/amplify	220.904s

[ewbankkit]

@megubyte Thanks for the contribution 🎉 👏.

[github-actions]

This functionality has been released in v4.58.0 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!

[github-actions]

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