fix(starters): update dependency gatsby to ^2.2.2 (#12687)

Author: renovate[bot]

starters/blog/package-lock.json

@@ -8,7 +8,7 @@
     "url": "https://github.com/gatsbyjs/gatsby/issues"
   },
   "dependencies": {
-    "gatsby": "^2.2.1",
+    "gatsby": "^2.2.2",
     "gatsby-image": "^2.0.34",
     "gatsby-plugin-feed": "^2.0.15",
     "gatsby-plugin-google-analytics": "^2.0.17",

starters/blog/package.json

@@ -5,7 +5,7 @@
   "version": "0.1.0",
   "author": "Kyle Mathews <[email protected]>",
   "dependencies": {
-    "gatsby": "^2.2.1",
+    "gatsby": "^2.2.2",
     "gatsby-image": "^2.0.34",
     "gatsby-plugin-manifest": "^2.0.24",
     "gatsby-plugin-offline": "^2.0.25",