Bump vue-simple-calendar from 5.0.1 to 6.0.3 in /vue

Bumps [vue-simple-calendar](https://github.com/richardtallent/vue-simple-calendar) from 5.0.1 to 6.0.3.
- [Release notes](https://github.com/richardtallent/vue-simple-calendar/releases)
- [Changelog](https://github.com/richardtallent/vue-simple-calendar/blob/main/CHANGELOG.md)
- [Commits](https://github.com/richardtallent/vue-simple-calendar/commits/v6.0.3)

---
updated-dependencies:
- dependency-name: vue-simple-calendar
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

vue/package.json

@@ -29,7 +29,7 @@
         "vue-infinite-loading": "^2.4.5",
         "vue-multiselect": "^2.1.6",
         "vue-property-decorator": "^9.1.2",
-        "vue-simple-calendar": "^5.0.1",
+        "vue-simple-calendar": "^6.0.3",
         "vue-template-compiler": "^2.6.14",
         "vue2-touch-events": "^3.2.2",
         "vuedraggable": "^2.24.3",