fix(deps): update dependency eslint to v8

Author: renovate-bot

package.json

@@ -83,7 +83,7 @@
     "@typescript-eslint/eslint-plugin": "^5.0.0",
     "@typescript-eslint/parser": "^5.0.0",
     "cross-env": "^7.0.2",
-    "eslint": "^7.21.0",
+    "eslint": "^8.0.0",
     "eslint-config-prettier": "^8.0.0",
     "eslint-config-standard": "^16.0.0",
     "eslint-import-resolver-node": "^0.3.4",