fix(dependencies): add types

Author: ArtyomResh

package-lock.json

@@ -28,6 +28,7 @@
     "@types/node": "^14.0.23",
     "@types/react": "^16.9.43",
     "@types/react-dom": "^16.9.8",
+    "@types/schema-utils": "^2.4.0",
     "@types/webpack": "^4.41.21",
     "@types/webpack-env": "^1.15.2",
     "@typescript-eslint/eslint-plugin": "^3.6.1",
@@ -45,7 +46,6 @@
     "ts-jest": "^26.1.3",
     "ts-loader": "^8.0.1",
     "ts-node": "^8.10.2",
-    "typescript": "^3.9.7",
     "webpack": "^4.43.0",
     "webpack-cli": "^3.3.12"
   },