include latest font awesome icon set

We are using gitlab 15.8.1. It only provides V4 of the font awesome icons. Please include the latest version of font awesome icons.

example: fa-code-fork (V4) vs fa-code-branch (V5+)

• V5 icons for code .. https://fontawesome.com/v5/search?q=code&o=r
• latest icons for code .. https://fontawesome.com/search?q=code&o=r