upgrade typescript to avoid compilation errors

Author: rformato

package.json

@@ -60,7 +60,7 @@
     "react": "16.11.0",
     "react-native": "0.62.2",
     "release-it": "^13.5.8",
-    "typescript": "^3.8.3"
+    "typescript": "^4.1.2"
   },
   "peerDependencies": {
     "react": "*",