example: update to gatsby v3.7

Author: LekoArts

example/gatsby-config.js

@@ -10,7 +10,6 @@ module.exports = {
   flags: {
     DEV_SSR: false,
     FAST_DEV: true,
-    FUNCTIONS: true,
   },
   plugins: [
     {

example/package.json

@@ -9,13 +9,13 @@
     "@vanilla-extract/css": "^1.0.0",
     "@vanilla-extract/webpack-plugin": "^1.0.1",
     "date-fns": "^2.22.1",
-    "gatsby": "^3.6.2",
-    "gatsby-plugin-gatsby-cloud": "^2.6.1",
-    "gatsby-plugin-image": "^1.6.0",
+    "gatsby": "^3.7.0",
+    "gatsby-plugin-gatsby-cloud": "^2.7.0",
+    "gatsby-plugin-image": "^1.7.0",
     "gatsby-plugin-react-helmet-async": "^1.2.0",
-    "gatsby-plugin-sharp": "^3.6.0",
+    "gatsby-plugin-sharp": "^3.7.0",
     "gatsby-source-tmdb": "^2.0.0",
-    "gatsby-transformer-sharp": "^3.6.0",
+    "gatsby-transformer-sharp": "^3.7.0",
     "node-fetch": "^2.6.1",
     "react": "^17.0.2",
     "react-content-loader": "^6.0.3",