fix(deps): update dependency gatsby-transformer-cloudinary to v4

Author: renovate[bot]

package.json

@@ -26,7 +26,7 @@
     "gatsby-plugin-google-analytics": "2.1.19",
     "gatsby-plugin-sitemap": "2.2.16",
     "gatsby-theme-mdx-deck": "3.1.0",
-    "gatsby-transformer-cloudinary": "0.3.5",
+    "gatsby-transformer-cloudinary": "4.6.0",
     "react": "16.13.1",
     "react-dom": "16.13.1",
     "react-helmet": "5.2.1"