Update dependency typescript to v3.4.5 (reactjs#784)

Author: renovate[bot]

src/React.Sample.Mvc4/package.json

@@ -7,6 +7,6 @@
     "@types/react": "16.8.17",
     "@types/react-dom": "16.8.4",
     "@types/reactstrap": "8.0.1",
-    "typescript": "3.4.4"
+    "typescript": "3.4.5"
   }
 }