OCPBUGS-99023: Fix CVE-2026-49978 - bump DOMPurify to >= 3.4.7

[germanparente]

Summary

• Bumps DOMPurify to >= 3.4.11 (resolves to 3.4.12) via yarn resolutions
• Fixes CVE-2026-49978: DOMPurify IN_PLACE sanitization bypass via Shadow Root inside <template>.content (XSS)
• Fix version is 3.4.7; previous version was 3.2.7

Test plan

• Verify DOMPurify version in yarn.lock is >= 3.4.7
• Verify no regressions in console UI

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[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: germanparente
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[openshift-ci-robot]

@germanparente: This pull request references Jira Issue OCPBUGS-99023, which is invalid:

• expected dependent Jira Issue OCPBUGS-99034 to be in one of the following states: VERIFIED, RELEASE PENDING, CLOSED (ERRATA), CLOSED (CURRENT RELEASE), CLOSED (DONE), CLOSED (DONE-ERRATA), but it is ASSIGNED instead

Comment /jira refresh to re-evaluate validity if changes to the Jira bug are made, or edit the title of this pull request to link to a different bug.

The bug has been updated to refer to the pull request using the external bug tracker.

Details

In response to this:

Summary

• Bumps DOMPurify to >= 3.4.11 (resolves to 3.4.12) via yarn resolutions
• Fixes CVE-2026-49978: DOMPurify IN_PLACE sanitization bypass via Shadow Root inside <template>.content (XSS)
• Fix version is 3.4.7; previous version was 3.2.7

Test plan

• Verify DOMPurify version in yarn.lock is >= 3.4.7
• Verify no regressions in console UI

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