Add Enterprise Gateway SSTI fix references

[cookesan]

Adds Enterprise Gateway SSTI fix references to GHSA-f49j-v924-fx9w.

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-f49j-v924-fx9w/GHSA-f49j-v924-fx9w.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 SSTI 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 1e6b2f35497682e6581c48cc6d273644d32ab89e.
• The commit subject matches the advisory context: Fix KERNEL_POD_NAME substitution to avoid SSTI (#1412).

No other advisory fields are changed.