Update dependency eslint to v7.26.0 (#549)

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

Author: renovate[bot]

package-lock.json

@@ -71,7 +71,7 @@
     "babel-loader": "8.2.2",
     "cross-env": "7.0.3",
     "cross-spawn": "7.0.3",
-    "eslint": "7.25.0",
+    "eslint": "7.26.0",
     "eslint-config-prettier": "8.3.0",
     "eslint-config-react-app": "6.0.0",
     "eslint-plugin-flowtype": "5.7.2",