Update dependency @types/react-native to v0.73.0

Author: renovate[bot]

package.json

@@ -25,7 +25,7 @@
     "@types/jest": "24.0.23",
     "@types/node": "10.12.9",
     "@types/react": "16.9.0",
-    "@types/react-native": "0.60.22",
+    "@types/react-native": "0.73.0",
     "@types/react-test-renderer": "16.8.3",
     "babel-jest": "23.6.0",
     "babel-preset-react-native": "5.0.2",