feat(logs): support regex patterns for JSON Metrics filters

[jan-xyz]

Issue # (if applicable)

Closes #30451

Reason for this change

Support Regex in filter functions for JSON

Description of changes

Adding a new JSONPattern factory that uses % instead of " to support the regex pattern.

Description of how you validated changes

I tried it in our own CDK code.

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

---

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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[jan-xyz]

Clarification Request: How should the snapshot look like? It seems that this package doesn't have any yet? According to INTEGRATION_TEST.md there should be a integ.mtericfilter.js.snapshot/ directory but I couldn't find it.

[aws-cdk-automation]

AWS CodeBuild CI Report

• CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
• Commit ID: 93ddc8e
• Result: FAILED
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[aws-cdk-automation]

This PR has been in the CHANGES REQUESTED state for 3 weeks, and looks abandoned. To keep this PR from being closed, please continue work on it. If not, it will automatically be closed in a week.

[jan-xyz]

I had a question how to do the integration test, and I am still waiting on the response

[aws-cdk-automation]

This PR has been deemed to be abandoned, and will be automatically closed. Please create a new PR for these changes if you think this decision has been made in error.

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[paulhcsun]

Hi @jan-xyz, apologies for missing this clarification request. The integration tests for modules in aws-cdk-lib are located in the aws-cdk/packages/@aws-cdk-testing/framework-integ/test/aws-logs/test directory: https://github.com/aws/aws-cdk/tree/main/packages/%40aws-cdk-testing/framework-integ/test/aws-logs/test

Please refer to this section of our INTEGRATION_TESTS.md.

[aws-cdk-automation]

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