Update dependency vue-eslint-parser to v9 (#28)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

package.json

@@ -36,7 +36,7 @@
     "semver": "^7.0.0",
     "typescript": "^4.1.2",
     "vue-eslint-editor": "^1.1.0",
-    "vue-eslint-parser": "^8.3.0",
+    "vue-eslint-parser": "^9.0.0",
     "vuepress": "^1.2.0"
   },
   "scripts": {