chore(deps): update dependency eslint to v7.21.0

Author: renovate-bot

package-lock.json

@@ -27,7 +27,7 @@
   "devDependencies": {
     "@commitlint/cli": "12.0.1",
     "@commitlint/config-angular": "12.0.1",
-    "eslint": "7.20.0",
+    "eslint": "7.21.0",
     "husky": "5.1.1",
     "lint-staged": "10.5.4",
     "pinst": "2.1.6",