Bugfix: aws_lightsail_disk_attachment crash on failure

[brittandeyoung]

Description

This PR resolves a crash that occurs when terraform fails to attach a disk to an instance. The crash was taking place because the logs originally referenced an attribute that does not exist.

Relations

Closes #28024

References

Output from Acceptance Testing

➜ terraform-provider-aws (b-aws_lightsail_disk_attachemnt_crash) ✗ make testacc TESTARGS='-run=TestAccLightsailDiskAttachment' PKG=lightsail
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./internal/service/lightsail/... -v -count 1 -parallel 20  -run=TestAccLightsailDiskAttachment -timeout 180m
=== RUN   TestAccLightsailDiskAttachment_basic
=== PAUSE TestAccLightsailDiskAttachment_basic
=== RUN   TestAccLightsailDiskAttachment_disappears
=== PAUSE TestAccLightsailDiskAttachment_disappears
=== CONT  TestAccLightsailDiskAttachment_basic
=== CONT  TestAccLightsailDiskAttachment_disappears

--- PASS: TestAccLightsailDiskAttachment_disappears (168.07s)
--- PASS: TestAccLightsailDiskAttachment_basic (194.00s)
PASS
ok      github.com/hashicorp/terraform-provider-aws/internal/service/lightsail  196.259s

...

[github-actions]

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[ewbankkit]

LGTM 🚀.

% make testacc TESTARGS='-run=TestAccLightsailDiskAttachment_' PKG=lightsail ACCTEST_PARALLELISM=3
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./internal/service/lightsail/... -v -count 1 -parallel 3  -run=TestAccLightsailDiskAttachment_ -timeout 180m
=== RUN   TestAccLightsailDiskAttachment_basic
=== PAUSE TestAccLightsailDiskAttachment_basic
=== RUN   TestAccLightsailDiskAttachment_disappears
=== PAUSE TestAccLightsailDiskAttachment_disappears
=== CONT  TestAccLightsailDiskAttachment_basic
=== CONT  TestAccLightsailDiskAttachment_disappears
--- PASS: TestAccLightsailDiskAttachment_basic (180.28s)
--- PASS: TestAccLightsailDiskAttachment_disappears (183.21s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/lightsail	188.534s

[ewbankkit]

@brittandeyoung Thanks for the contribution 🎉 👏.

[github-actions]

This functionality has been released in v4.49.0 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]

I'm going to lock this pull request because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.
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.