fix(backend-deployer): improve handling of expired AWS credentials

[vigy02]

Problem

The CdkErrorMapper was not properly handling the "Error: The security token included in the request is expired" error message, leading to potentially confusing error output for users with expired AWS credentials.

Changes

• Updated the CdkErrorMapper to catch both "ExpiredToken" and "Error: The security token included in the request is expired" errors
• Modified the error message to be more descriptive and user-friendly
• Added a new test case to cover the expanded error handling
• Updated the existing test to align with the current implementation

Corresponding docs PR, if applicable: N/A

Validation

• Updated and added unit tests in cdk_error_mapper.test.ts to cover the new error handling

Checklist

• If this PR includes a functional change to the runtime behavior of the code, I have added or updated automated test coverage for this change.
• If this PR requires a change to the Project Architecture README, I have included that update in this PR.
• If this PR requires a docs update, I have linked to that docs PR above.
• If this PR modifies E2E tests, makes changes to resource provisioning, or makes SDK calls, I have run the PR checks with the run-e2e label set.

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

[changeset-bot]

🦋 Changeset detected

Latest commit: d4e10f5

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@aws-amplify/backend-deployer	Patch

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