update version numbers for 16.12

Author: lunaruan

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-test-renderer",
-  "version": "16.11.0",
+  "version": "16.12.0",
   "description": "React package for snapshot testing.",
   "main": "index.js",
   "repository": {
@@ -22,7 +22,7 @@
     "object-assign": "^4.1.1",
     "prop-types": "^15.6.2",
     "react-is": "^16.8.6",
-    "scheduler": "^0.17.0"
+    "scheduler": "^0.18.0"
   },
   "peerDependencies": {
     "react": "^16.0.0"