fix: Revert lambda nodejs18.x upgrade

[GavinZZ]

Issue #, if available

Description of changes

Move out failed EB test to a new test suite and explicitly skip the test to see if it makes a difference.

In last week, we updated nodejs version to 18.x. However it seems that upgrade is not as simple as expected. Integration tests failed due to "Error: Cannot find module 'aws-sdk'\nRequire stack:\n- /var/task/index.js\n- /var/runtime/index.mjs".

If your lambda runtime is nodejs18.x my understanding is that SDK v2 is not included in the runtime.

So, the best solution would be to switch to v3 SDK https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/

Description of how you validated changes

Checklist

• Adheres to the development guidelines
• Add/update transform tests
  • Using correct values
  • Using wrong values
• Add/update integration tests

Examples?

Please reach out in the comments if you want to add an example. Examples will be
added to sam init through aws/aws-sam-cli-app-templates.

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