fix: handle ContinuousBackupsUnavailableException in updateContinuousBackups when RequestType is 'Create'

[fossamagna]

Description of changes

If Point in Time Recovery is enable whne RequestType is Create, ContinuousBackupsUnavailableException may occur.
When ContinuousBackupsUnavailableException is thrown, I changed to retry.

CDK / CloudFormation Parameters Changed

n/a

Issue #, if available

aws-amplify/amplify-backend#1654

Description of how you validated changes

• Unit Test
• Manual Test
  1. Build amplify-category-api

  git clone [email protected]:fossamagna/amplify-category-api.git
  git switch fix-amplify-backend-issue-1654
  yarn install
  yarn setup-dev

  2. Deploy test project

  git clone [email protected]:fossamagna/website.git
  pnpm install
  npx ampx sandbox

  4. Check if the CloudWatch logs show Backups are being enabled for the table in log streams for TableManagerCustomProvider.isComplete lambda function and if the deployment is successful.
     e.g:

Checklist

• PR description included
• yarn test passes
• E2E test run linked
• Tests are changed or added
• Relevant documentation is changed or added (and PR referenced)
• New AWS SDK calls or CloudFormation actions have been added to relevant test and service IAM policies
• Any CDK or CloudFormation parameter changes are called out explicitly

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[dpilch]

The CI failed because the coverage decreased. I'm not sure why because you are adding the correct coverage.

Jest: "global" coverage threshold for branches (68%) not met: 67.26%
--
899 | Test Suites: 11 passed, 11 total
900 | Tests:       181 passed, 181 total
901 | Snapshots:   87 passed, 87 total
902 | Time:        52.333 s

Maybe because we are missing coverage on the else? https://github.com/aws-amplify/amplify-category-api/pull/3203/files#diff-f8f8c42c334f8453ee32eb354a7a49ad97ff4f900670f88ce74fecf93e253c48R436-R438

[fossamagna]

@dpilch
Thank you for your suggestions.
I added some test cases to increase coverage.

[dpilch]

Thanks, I'll start the E2E tests.

https://us-east-1.console.aws.amazon.com/codesuite/codebuild/594813022831/projects/amplify-category-api-e2e-workflow/batch/amplify-category-api-e2e-workflow:ba85fbaa-1c7a-4a0c-8130-302c751e3cae?region=us-east-1