chore: add ESLint to supported peerDependencies

Author: Cherry

package.json

@@ -24,7 +24,7 @@
     "vuejs"
   ],
   "peerDependencies": {
-    "eslint": "^5.0.0 || ^6.0.0 || ^7.0.0"
+    "eslint": "^5.0.0 || ^6.0.0 || ^7.0.0 || ^8.0.0"
   },
   "dependencies": {
     "aria-query": "^5.0.0",