fix(gatsby-plugin-utils): Add missing fs-extra dep (#35165) (#35168)

Co-authored-by: Lennart <[email protected]>

Author: gatsbybot

packages/gatsby-plugin-utils/package.json

@@ -47,6 +47,7 @@
   "homepage": "https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-plugin-utils#readme",
   "dependencies": {
     "@babel/runtime": "^7.15.4",
+    "fs-extra": "^10.0.0",
     "gatsby-core-utils": "^3.10.0",
     "gatsby-sharp": "^0.4.0",
     "graphql-compose": "^9.0.7",