fix: specify yarn as package manager

Author: G-Rath

package.json

@@ -24,5 +24,6 @@
   "devDependencies": {
     "webpack": "^5.74.0",
     "webpack-cli": "^5.0.1"
-  }
+  },
+  "packageManager": "yarn@1.22.21"
 }

react-builds/package.json

@@ -16,5 +16,6 @@
     "react-dom": "^18.2.0",
     "react-transition-group": "1.1.1",
     "webpack": "^5.74.0"
-  }
+  },
+  "packageManager": "yarn@1.22.21"
 }