Update gatsby monorepo

Author: renovate[bot]

package.json

@@ -10,20 +10,20 @@
     "node": ">=12.13.0"
   },
   "dependencies": {
-    "gatsby": "^2.32.0",
+    "gatsby": "^5.0.0",
     "gatsby-plugin-matomo": "^0.9.0",
-    "gatsby-plugin-postcss": "^3.7.0",
+    "gatsby-plugin-postcss": "^6.0.0",
     "gatsby-plugin-purgecss": "^5.0.0",
-    "gatsby-source-filesystem": "^2.11.0",
-    "gatsby-transformer-json": "^2.11.0",
+    "gatsby-source-filesystem": "^5.0.0",
+    "gatsby-transformer-json": "^5.0.0",
     "react": "^17.0.1",
     "react-dom": "^17.0.1"
   },
   "devDependencies": {
     "@types/node": "^14.14.22",
     "@types/react": "^17.0.1",
     "babel-plugin-module-resolver": "^4.1.0",
-    "babel-preset-gatsby": "^0.12.0",
+    "babel-preset-gatsby": "^3.0.0",
     "postcss": "^8.2.4",
     "tailwindcss": "^2.0.2",
     "typescript": "^4.1.3"