Bump @fortawesome/vue-fontawesome from 3.0.0-2 to 3.0.0-3 (#6971)

Bumps [@fortawesome/vue-fontawesome](https://github.com/FortAwesome/vue-fontawesome) from 3.0.0-2 to 3.0.0-3.
- [Release notes](https://github.com/FortAwesome/vue-fontawesome/releases)
- [Changelog](https://github.com/FortAwesome/vue-fontawesome/blob/3.0.0-3/CHANGELOG.md)
- [Commits](https://github.com/FortAwesome/vue-fontawesome/commits/3.0.0-3

)

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