Bump pdfjs-dist from 3.11.174 to 4.2.67

Bumps [pdfjs-dist](https://github.com/mozilla/pdf.js) from 3.11.174 to 4.2.67.
- [Release notes](https://github.com/mozilla/pdf.js/releases)
- [Commits](mozilla/pdf.js@v3.11.174...v4.2.67)

---
updated-dependencies:
- dependency-name: pdfjs-dist
  dependency-version: 4.2.67
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

apps/user-site/package.json

@@ -60,7 +60,7 @@
     "lodash": "^4.17.21",
     "lucide-react": "^0.525.0",
     "next-themes": "^0.4.6",
-    "pdfjs-dist": "3.11.174",
+    "pdfjs-dist": "4.2.67",
     "prismjs": "^1.30.0",
     "react": "^19.1.0",
     "react-dom": "^19.1.0",