chore(deps): update dependency eslint to v8

package.json

@@ -80,7 +80,7 @@
     "@typescript-eslint/eslint-plugin": "^2.24.0",
     "@typescript-eslint/parser": "^2.24.0",
     "chai": "^4.2.0",
-    "eslint": "^6.8.0",
+    "eslint": "^8.0.0",
     "mocha": "^10.1.0",
     "mock-socket": "^9.1.5",
     "nodemon": "^2.0.20",