fix(ec2-alpha): do not use string comparison in rangesOverlap

[awsdro]

Issue #32145

Closes #32145.

Reason for this change

The rangesOverlap method was using string comparison to check if IP ranges overlapped.

Description of changes

The rangesOverlap method was updated to compare IP ranges using the ip-num library

Description of how you validated changes

Added two unit tests to verify correct behavior

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

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

[aws-cdk-automation]

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[awsdro]

Clarification Request: I added some unit tests to check the behavior of the updated method, is that enough?

[aws-cdk-automation]

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[aws-cdk-automation]

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[aws-cdk-automation]

AWS CodeBuild CI Report

• CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
• Commit ID: 7182ddd
• Result: FAILED
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