chore(deps): update dependency @netlify/plugin-gatsby to v3.5.0

Author: renovate[bot]

package.json

@@ -43,7 +43,7 @@
   },
   "devDependencies": {
     "@emmanuelgautier/renovate-config": "1.5.1",
-    "@netlify/plugin-gatsby": "3.4.8",
+    "@netlify/plugin-gatsby": "3.5.0",
     "@netlify/plugin-lighthouse": "4.0.3",
     "prettier": "2.8.1"
   },