ui: bump vue-gtag from 3.6.2 to 3.6.3 in /ui

Bumps [vue-gtag](https://github.com/MatteoGabriele/vue-gtag) from 3.6.2 to 3.6.3.
- [Release notes](https://github.com/MatteoGabriele/vue-gtag/releases)
- [Changelog](https://github.com/MatteoGabriele/vue-gtag/blob/master/CHANGELOG.md)
- [Commits](MatteoGabriele/vue-gtag@v3.6.2...v3.6.3)

---
updated-dependencies:
- dependency-name: vue-gtag
  dependency-version: 3.6.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]