upgrade parser

Author: ota-meshi

Diff for: package.json

@@ -56,7 +56,7 @@
     "eslint-utils": "^2.1.0",
     "natural-compare": "^1.4.0",
     "semver": "^7.3.2",
-    "vue-eslint-parser": "^7.6.0"
+    "vue-eslint-parser": "^7.7.0"
   },
   "devDependencies": {
     "@types/eslint": "^7.2.0",