Update Emoji Set to support Unicode 15.1

Problem to solve

Use of Up-to-date Emoji in GitLab

Intended users

Everyone

Further details

Users will be able to use more emojis 🎉

What does success look like, and how can we measure that?

For example use the teacher emoji 👨‍🏫 correctly instead of a man and a house.

Links / references

https://docs.gitlab.com/ee/development/fe_guide/emojis.html#how-to-update-emojis