Add Filament advisory references

[cookesan]

Summary

• Add the Packagist fixed-version reference for filament/forms 3.3.53.
• Add the NVD advisory reference for CVE-2026-55409.
• Leave affected range, severity, summary, and review metadata unchanged.

Validation

• Verified the advisory aliases CVE-2026-55409.
• Verified NVD returns a matching CVE-2026-55409 record describing the Filament forms XSS fixed in 3.3.53.
• Confirmed Packagist publishes filament/forms v3.3.53.
• Confirmed the existing upstream fix PR is merged and the v3.3.53 release URL resolves.
• Ran jq empty on the advisory JSON.
• Ran git diff --check.
• Checked for duplicate advisory reference URLs.