Add CREATING_SNAPSHOT status while waiting for MWAA version upgrade

[MayurHadole]

Description

MWAA now supports in-place version upgrades.
In a successful MWAA version upgrade scenario, the status will show UPDATING, then CREATING_SNAPSHOT as Amazon MWAA captures a backup of metadata. Finally, the status will return first to UPDATING, then to AVAILABLE when the procedure is done.

This PR adds CREATING_SNAPSHOT status as a valid status along with UPDATING status when waiting for MWAA upgrade

Relations

Closes #31825.
Closes #21640.

References

https://aws.amazon.com/blogs/big-data/introducing-in-place-version-upgrades-with-amazon-mwaa/
https://docs.aws.amazon.com/mwaa/latest/userguide/upgrading-environment.html

Output from Acceptance Testing

[github-actions]

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[github-actions]

Welcome @MayurHadole 👋

It looks like this is your first Pull Request submission to the Terraform AWS Provider! If you haven’t already done so please make sure you have checked out our CONTRIBUTOR guide and FAQ to make sure your contribution is adhering to best practice and has all the necessary elements in place for a successful approval.

Also take a look at our FAQ which details how we prioritize Pull Requests for inclusion.

Thanks again, and welcome to the community! 😃

[ewbankkit]

LGTM 🚀.

% ACCTEST_TIMEOUT=360m  make testacc TESTARGS='-run=TestAccMWAAEnvironment_log\|TestAccMWAAEnvironment_pluginsS3ObjectVersion\|TestAccMWAAEnvironment_updateAirflowVersionMinor' PKG=mwaa
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./internal/service/mwaa/... -v -count 1 -parallel 20  -run=TestAccMWAAEnvironment_log\|TestAccMWAAEnvironment_pluginsS3ObjectVersion\|TestAccMWAAEnvironment_updateAirflowVersionMinor -timeout 360m
=== RUN   TestAccMWAAEnvironment_log
=== PAUSE TestAccMWAAEnvironment_log
=== RUN   TestAccMWAAEnvironment_pluginsS3ObjectVersion
=== PAUSE TestAccMWAAEnvironment_pluginsS3ObjectVersion
=== RUN   TestAccMWAAEnvironment_updateAirflowVersionMinor
=== PAUSE TestAccMWAAEnvironment_updateAirflowVersionMinor
=== CONT  TestAccMWAAEnvironment_log
=== CONT  TestAccMWAAEnvironment_updateAirflowVersionMinor
=== CONT  TestAccMWAAEnvironment_pluginsS3ObjectVersion
--- PASS: TestAccMWAAEnvironment_pluginsS3ObjectVersion (4896.54s)
--- PASS: TestAccMWAAEnvironment_log (5075.34s)
--- PASS: TestAccMWAAEnvironment_updateAirflowVersionMinor (7121.57s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/mwaa	7127.134s

[ewbankkit]

@MayurHadole Thanks for the contribution 🎉 👏.

[github-actions]

This functionality has been released in v5.2.0 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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If you have found a problem that seems related to this change, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.