ci: 💚 fix dependencies for build

- fix `package.json` and `package-lock.json` 🙈

Author: johannrichard

package.json

@@ -34,7 +34,6 @@
         "filenamify": "^6.0.0",
         "nunjucks": "^3.2.3",
         "spacetime": "^6.16.0",
-        "unused-filename": "^4.0.1",
         "yaml": "^2.7.0"
     }
 }