update example to latest expo SDK

Author: schiller-manuel

example/package.json

@@ -10,15 +10,15 @@
   "dependencies": {
     "@types/gl-react-expo": "^3.16.2",
     "buffer": "^5.6.0",
-    "expo": "^40.0.0",
-    "expo-gl": "~9.2.0",
+    "expo": "^42.0.0",
+    "expo-gl": "~10.4.1",
     "gl-react": "^5.0.0",
     "gl-react-blurhash": "latest",
     "gl-react-expo": "^5.0.0",
     "react": "16.13.1",
     "react-dom": "16.13.1",
-    "react-native": "https://github.com/expo/react-native/archive/sdk-40.0.1.tar.gz",
-    "react-native-screens": "~2.15.2",
+    "react-native": "https://github.com/expo/react-native/archive/sdk-42.0.0.tar.gz",
+    "react-native-screens": "~3.4.0",
     "react-native-web": "~0.13.12"
   },
   "devDependencies": {