feat: add support for enabling/disabling schema-registry forwarding

[fryjordan]

Description

Add support for enabling/disabling requests from target->source instance schema registry.

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Release notes content

This feature adds support for enabling/disabling Event Streams schema registry request forwarding.

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Checklist for reviewers

• If relevant, a test for the change is included or updated with this PR.
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[fryjordan]

/run pipeline

[github-actions]

@fryjordan you must be in the team github-collaborators in order to trigger the pipeline.

[JunliWang]

/run pipeline

[JunliWang]

/run pipeline

[Ak-sky]

/run pipeline

[Ak-sky]

We are currently facing an issue in our PR test pipeline for forked PRs, so we have recreated the PR and will be closing this one.