[dev] Update dependency eslint to v7.20.0 (#53)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

package-lock.json

@@ -47,7 +47,7 @@
     "babel-eslint": "10.1.0",
     "babel-preset-es2015": "6.24.1",
     "babel-preset-react": "6.24.1",
-    "eslint": "7.19.0"
+    "eslint": "7.20.0"
   },
   "renovate": {
     "extends": [