[Develop] Introduce pagnator in describe_images boto3 calls

[hehe7318]

Description of changes

• Introduce pagnator in describe_images boto3 calls.

Tests

• Pytest passed.
• Manually test cluster creation passed.

References

• This change can fix a potential issue of Cannot find official ParallelCluster AMI

Checklist

• Make sure you are pointing to the right branch.
• If you're creating a patch for a branch other than develop add the branch name as prefix in the PR title (e.g. [release-3.6]).
• Check all commits' messages are clear, describing what and why vs how.
• Make sure to have added unit tests or integration tests to cover the new/modified code.
• Check if documentation is impacted by this change.

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