fix: update react monorepo to ^16.9.0 (#16478)

Author: renovate[bot]

starters/blog/package-lock.json

@@ -26,8 +26,8 @@
     "gatsby-transformer-remark": "^2.6.12",
     "gatsby-transformer-sharp": "^2.2.6",
     "prismjs": "^1.17.1",
-    "react": "^16.8.6",
-    "react-dom": "^16.8.6",
+    "react": "^16.9.0",
+    "react-dom": "^16.9.0",
     "react-helmet": "^5.2.1",
     "react-typography": "^0.16.19",
     "typeface-merriweather": "0.0.72",

starters/blog/package.json

@@ -14,8 +14,8 @@
     "gatsby-source-filesystem": "^2.1.9",
     "gatsby-transformer-sharp": "^2.2.6",
     "prop-types": "^15.7.2",
-    "react": "^16.8.6",
-    "react-dom": "^16.8.6",
+    "react": "^16.9.0",
+    "react-dom": "^16.9.0",
     "react-helmet": "^5.2.1"
   },
   "devDependencies": {

starters/default/package-lock.json

@@ -14,8 +14,8 @@
   },
   "dependencies": {
     "gatsby": "^2.13.53",
-    "react": "^16.8.6",
-    "react-dom": "^16.8.6"
+    "react": "^16.9.0",
+    "react-dom": "^16.9.0"
   },
   "devDependencies": {
     "prettier": "^1.18.2"

starters/default/package.json

@@ -10,7 +10,7 @@
   "dependencies": {
     "gatsby": "^2.13.53",
     "gatsby-theme-blog": "^1.0.2",
-    "react": "^16.8.6",
-    "react-dom": "^16.8.6"
+    "react": "^16.9.0",
+    "react-dom": "^16.9.0"
   }
 }

starters/hello-world/package-lock.json

@@ -10,7 +10,7 @@
   "dependencies": {
     "gatsby": "^2.13.53",
     "gatsby-theme-notes": "^1.0.3",
-    "react": "^16.8.6",
-    "react-dom": "^16.8.6"
+    "react": "^16.9.0",
+    "react-dom": "^16.9.0"
   }
 }