fix(enhanced filters): Prepend regex search filter for map values

[ksurabhi91]

This PR adds regex prefix to map values in Query builder

• CHANGELOG.md is updated OR update is not needed
• documentation PR is created and is linked above OR is not needed

Testing and quality

• the change is production ready: the change is GA, or otherwise the functionality is gated by a feature flag
• CI results are inspected

Automated testing

• [X ] added unit tests
• added e2e tests
• added regression tests
• added compatibility tests
• modified existing tests

How I validated my change

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[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[github-actions]

🚀 Build Images Ready

Images are ready for commit 7ac65fe. To use with deploy scripts:

export MAIN_IMAGE_TAG=4.11.x-1064-g7ac65fee51

[openshift-ci]

@ksurabhi91: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/gke-upgrade-tests	7ac65fe	link	false	/test gke-upgrade-tests
ci/prow/ocp-4-21-nongroovy-e2e-tests	7ac65fe	link	false	/test ocp-4-21-nongroovy-e2e-tests

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