fix(starters): update gatsby monorepo (gatsbyjs#14183)

starters/blog/package.json

@@ -8,7 +8,7 @@
     "url": "https://github.com/gatsbyjs/gatsby/issues"
   },
   "dependencies": {
-    "gatsby": "^2.5.5",
+    "gatsby": "^2.5.7",
     "gatsby-image": "^2.1.0",
     "gatsby-plugin-feed": "^2.2.0",
     "gatsby-plugin-google-analytics": "^2.0.20",
@@ -22,7 +22,7 @@
     "gatsby-remark-prismjs": "^3.2.9",
     "gatsby-remark-responsive-iframe": "^2.1.1",
     "gatsby-remark-smartypants": "^2.0.9",
-    "gatsby-source-filesystem": "^2.0.36",
+    "gatsby-source-filesystem": "^2.0.37",
     "gatsby-transformer-remark": "^2.3.12",
     "gatsby-transformer-sharp": "^2.1.19",
     "prismjs": "^1.16.0",

starters/default/package.json

@@ -5,13 +5,13 @@
   "version": "0.1.0",
   "author": "Kyle Mathews <[email protected]>",
   "dependencies": {
-    "gatsby": "^2.5.5",
+    "gatsby": "^2.5.7",
     "gatsby-image": "^2.1.0",
     "gatsby-plugin-manifest": "^2.1.1",
     "gatsby-plugin-offline": "^2.1.1",
     "gatsby-plugin-react-helmet": "^3.0.12",
     "gatsby-plugin-sharp": "^2.0.37",
-    "gatsby-source-filesystem": "^2.0.36",
+    "gatsby-source-filesystem": "^2.0.37",
     "gatsby-transformer-sharp": "^2.1.19",
     "prop-types": "^15.7.2",
     "react": "^16.8.6",

starters/hello-world/package.json

@@ -13,7 +13,7 @@
     "test": "echo \"Write tests! -> https://gatsby.dev/unit-testing\""
   },
   "dependencies": {
-    "gatsby": "^2.5.5",
+    "gatsby": "^2.5.7",
     "react": "^16.8.6",
     "react-dom": "^16.8.6"
   },