Chore(deps): Bump pdfjs-dist from 5.7.284 to 6.0.227 in /src-ui

Bumps [pdfjs-dist](https://github.com/mozilla/pdf.js) from 5.7.284 to 6.0.227.
- [Release notes](https://github.com/mozilla/pdf.js/releases)
- [Commits](https://github.com/mozilla/pdf.js/compare/v5.7.284...v6.0.227)

---
updated-dependencies:
- dependency-name: pdfjs-dist
  dependency-version: 6.0.227
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

src-ui/package.json

@@ -33,7 +33,7 @@
     "ngx-device-detector": "^11.0.0",
     "ngx-ui-tour-ng-bootstrap": "^18.0.0",
     "normalize-diacritics": "^5.0.0",
-    "pdfjs-dist": "^5.7.284",
+    "pdfjs-dist": "^6.0.227",
     "rxjs": "^7.8.2",
     "tslib": "^2.8.1",
     "utif": "^3.1.0",