Update dependency eslint-plugin-vue to v8 (#102)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package.json

@@ -88,7 +88,7 @@
         "eslint-plugin-prettier": "^4.0.0",
         "eslint-plugin-regexp": "^1.0.0",
         "eslint-plugin-toml": "^0.2.0",
-        "eslint-plugin-vue": "^7.0.1",
+        "eslint-plugin-vue": "^8.0.0",
         "eslint-plugin-yml": "^0.10.0",
         "eslint4b": "^7.3.1",
         "espree": "^9.0.0",