Bump lint-staged from 9.3.0 to 9.4.0 in /src/FilterLists.Web

Bumps [lint-staged](https://github.com/okonet/lint-staged) from 9.3.0 to 9.4.0.
- [Release notes](https://github.com/okonet/lint-staged/releases)
- [Commits](https://github.com/okonet/lint-staged/compare/v9.3.0...v9.4.0)

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

src/FilterLists.Web/package.json

@@ -58,7 +58,7 @@
     "eslint-config-prettier": "^6.3.0",
     "eslint-plugin-prettier": "^3.1.1",
     "husky": "^3.0.5",
-    "lint-staged": "^9.3.0",
+    "lint-staged": "^9.4.0",
     "prettier": "^1.18.2"
   }
 }