Add a cautionary note for CMK-encrypted volumes

[acdha]

This would have saved a little debugging time – see #12507

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Relates OR Closes #0000

Release note for CHANGELOG:

Output from acceptance testing:

$ make testacc TESTARGS='-run=TestAccXXX'

...

[acdha]

@breathingdust Is there anything else I can do to help pull this along? I resolved the merge conflicts.

[breathingdust]

LGTM @acdha! 🚀 Thank you!

[github-actions]

This functionality has been released in v3.46.0 of the Terraform AWS Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

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[github-actions]

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