r/aws_cloudformation_stack: Set computed fields correctly

[johnsonaj]

Description

Relations

Closes #33327

References

Output from Acceptance Testing

$ make testacc TESTARGS='-run=TestAccCloudFormationStack_' PKG=cloudformation

==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./internal/service/cloudformation/... -v -count 1 -parallel 20  -run=TestAccCloudFormationStack_ -timeout 360m
--- PASS: TestAccCloudFormationStack_disappears (122.15s)
--- PASS: TestAccCloudFormationStack_yaml (143.68s)
--- PASS: TestAccCloudFormationStack_onFailure (160.02s)
--- PASS: TestAccCloudFormationStack_withTransform (162.62s)
--- PASS: TestAccCloudFormationStack_basic (168.87s)
--- PASS: TestAccCloudFormationStack_updateFailure (171.24s)
--- PASS: TestAccCloudFormationStack_defaultParams (188.29s)
--- PASS: TestAccCloudFormationStack_withParams (209.04s)
--- PASS: TestAccCloudFormationStack_CreationFailure_doNothing (210.11s)
--- PASS: TestAccCloudFormationStack_CreationFailure_delete (212.13s)
--- PASS: TestAccCloudFormationStack_templateUpdate (221.74s)
--- PASS: TestAccCloudFormationStack_outputsUpdated (221.77s)
--- PASS: TestAccCloudFormationStack_CreationFailure_rollback (221.80s)
--- PASS: TestAccCloudFormationStack_allAttributes (271.92s)
--- PASS: TestAccCloudFormationStack_WithURLWithParams_withYAML (383.11s)
--- PASS: TestAccCloudFormationStack_WithURLWithParams_noUpdate (545.84s)
--- PASS: TestAccCloudFormationStack_WithURL_withParams (568.21s)
PASS
ok  	github.com/hashicorp/terraform-provider-aws/internal/service/cloudformation	571.454s

[github-actions]

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[github-actions]

This functionality has been released in v5.22.0 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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