Bug: GitLab icon is outdated #1252

Description

The GitLab logo has changed and the angular style represented in the icon in this set is no longer used.

cf. https://about.gitlab.com/press/press-kit/

Steps to reproduce

N/A.

Version

No response

Browser

No response

Operating system

No response

Checklist

• I have searched the existing issues to make sure this bug has not already been reported.