fix: upgrade vue from 2.6.10 to 2.6.11

Snyk has created this PR to upgrade vue from 2.6.10 to 2.6.11.

See this package in NPM:
https://www.npmjs.com/package/vue

See this project in Snyk:
https://app.snyk.io/org/shybin018/project/a7a34a61-5aa8-4450-a861-51f369ec3b26?utm_source=github&utm_medium=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -47,7 +47,7 @@
     "jssha": "^2.3.1",
     "qrcode-generator": "^1.4.3",
     "qrcode-reader": "^1.0.4",
-    "vue": "^2.6.10",
+    "vue": "^2.6.11",
     "vue2-dragula": "^2.5.4"
   }
 }