chore(package): update @typescript-eslint/eslint-plugin to version 3.1.0

Closes #54

Author: greenkeeper[bot]

package.json

@@ -39,7 +39,7 @@
     "@types/jest": "^24.0.18",
     "@types/react": "^16.9.2",
     "@types/react-dom": "^16.8.4",
-    "@typescript-eslint/eslint-plugin": "^2.2.0",
+    "@typescript-eslint/eslint-plugin": "^3.1.0",
     "@typescript-eslint/parser": "^2.2.0",
     "eslint": "^6.3.0",
     "eslint-plugin-jest": "^23.0.0",