Update dependency eslint-plugin-vue to v7.7.0

Author: renovate-bot

package-lock.json

@@ -23,7 +23,7 @@
     "@vue/cli-service": "4.5.11",
     "babel-eslint": "10.1.0",
     "eslint": "7.18.0",
-    "eslint-plugin-vue": "7.5.0",
+    "eslint-plugin-vue": "7.7.0",
     "sass": "1.32.5",
     "sass-loader": "10.1.1",
     "vue-cli-plugin-vuetify": "2.0.9",