Update dependency eslint to v7.9.0

Author: renovate-bot

package-lock.json

@@ -39,7 +39,7 @@
     "@types/react": "16.9.47",
     "@typescript-eslint/eslint-plugin": "3.10.1",
     "@typescript-eslint/parser": "3.10.1",
-    "eslint": "7.7.0",
+    "eslint": "7.9.0",
     "eslint-config-prettier": "6.11.0",
     "eslint-plugin-prettier": "3.1.4",
     "eslint-plugin-react": "7.20.6",