chore: bump RN dev dep to 0.58 (#110)

### Summary

Using latest RN for testing.

### Test plan

No new tests added, it's an upgrade

package.json

@@ -23,10 +23,10 @@
     "flow-bin": "^0.88.0",
     "flow-copy-source": "^2.0.2",
     "jest": "^24.1.0",
-    "metro-react-native-babel-preset": "^0.49.0",
-    "react": "16.6.1",
-    "react-native": "^0.57.8",
-    "react-test-renderer": "16.6.1",
+    "metro-react-native-babel-preset": "^0.49.1",
+    "react": "16.6.3",
+    "react-native": "^0.58.3",
+    "react-test-renderer": "16.6.3",
     "release-it": "^10.0.0",
     "strip-ansi": "^5.0.0",
     "typescript": "^3.1.1"