chore(deps): bump qrcode.vue from 1.6.1 to 1.6.2 in /frontend

Bumps [qrcode.vue](https://github.com/scopewu/qrcode.vue) from 1.6.1 to 1.6.2.
- [Release notes](https://github.com/scopewu/qrcode.vue/releases)
- [Commits](https://github.com/scopewu/qrcode.vue/commits)

Signed-off-by: dependabot[bot] <support@dependabot.com>

frontend/package.json

@@ -17,7 +17,7 @@
     "moment": "^2.24.0",
     "normalize.css": "^8.0.1",
     "noty": "^3.2.0-beta",
-    "qrcode.vue": "^1.6.1",
+    "qrcode.vue": "^1.6.2",
     "vue": "^2.6.10",
     "vue-i18n": "^8.11.2",
     "vue-router": "^3.0.6",