Upgrade jest to v24.0.0-alpha.6

Summary: yayyay

Reviewed By: mjesun

Differential Revision: D13027838

fbshipit-source-id: ce51a82fa4c6dfa62e202e52c2733d161ae52883

Author: rafeca

package.json

@@ -170,6 +170,8 @@
     "glob": "^7.1.1",
     "graceful-fs": "^4.1.3",
     "inquirer": "^3.0.6",
+    "jest": "24.0.0-alpha.6",
+    "jest-junit": "5.2.0",
     "lodash": "^4.17.5",
     "metro": "^0.49.1",
     "metro-babel-register": "^0.49.1",
@@ -186,7 +188,7 @@
     "opn": "^3.0.2",
     "optimist": "^0.6.1",
     "plist": "^3.0.0",
-    "pretty-format": "24.0.0-alpha.4",
+    "pretty-format": "24.0.0-alpha.6",
     "promise": "^7.1.1",
     "prop-types": "^15.5.8",
     "react-clone-referenced-element": "^1.0.1",
@@ -218,8 +220,8 @@
     "eslint-plugin-react": "7.8.2",
     "eslint-plugin-react-native": "3.5.0",
     "flow-bin": "^0.85.0",
-    "jest": "24.0.0-alpha.4",
-    "jest-junit": "5.1.0",
+    "jest": "24.0.0-alpha.6",
+    "jest-junit": "5.2.0",
     "prettier": "1.13.6",
     "react": "16.6.1",
     "react-native-dummy": "0.1.0",