Add Enterprise Gateway manifest injection fix references

[cookesan]

Adds Enterprise Gateway manifest injection fix references to GHSA-cfw7-6c5v-2wjq.

Audit refresh, July 8, 2026:

• Confirmed the live PR is open, ready for review, merge-clean, and the visible advisory check is green.
• Rechecked the merge-base diff: exactly one advisory JSON file changes (advisories/github-reviewed/2026/06/GHSA-cfw7-6c5v-2wjq/GHSA-cfw7-6c5v-2wjq.json), JSON parses, git diff --check passes, and the exact-head worktree is clean.
• Revalidated the added public references and package-version evidence in the diff; all resolve through their source site or registry.

[cookesan]

Rechecked this reference-only PR while keeping the open Advisory Database queue current.

• The patch only adds the Enterprise Gateway v3.3.0 release reference and fix commit reference; it does not change affected ranges, package metadata, or severity.
• The release tag resolves as v3.3.0, and the commit resolves to 2258a41f9840ccf8754ed184b8b35fda9efb221a.
• The commit subject explicitly matches this advisory: Fix YAML injection via KERNEL_* env vars (GHSA-cfw7-6c5v-2wjq).

No other advisory fields are changed.