Update all non-major dependencies

Author: renovate-bot

package.json

@@ -13,11 +13,11 @@
     "test": "echo \"Write tests! -> https://gatsby.dev/unit-testing\""
   },
   "dependencies": {
-    "gatsby": "2.9.11",
+    "gatsby": "2.13.57",
     "gatsby-source-airtable": "2.0.8",
-    "gatsby-source-filesystem": "2.0.43",
-    "react": "16.8.6",
-    "react-dom": "16.8.6"
+    "gatsby-source-filesystem": "2.1.9",
+    "react": "16.9.0",
+    "react-dom": "16.9.0"
   },
   "devDependencies": {
     "prettier": "1.18.2"