⬆️ load latest fontawesome package

[marciska]

This is an enhancement or feature.

Summary

Upgrade to the newest fontawesome package.
Until now the package has been fixed at version 5.0.0 and has thus never received any bugfixes.
By changing the @5 to @latest in the version tag, minimal-mistakes now ships always with the newest up-to-date version.
(Currently, 6.1.1 is the newest)

Context

I am a researcher and therefore active on many research-related social platforms. I needed some icons that were introduced in later patch-versions of fontawesome version 5, so I had to manually overwrite the head.html just to get the newest version. I believe that minimal-mistakes should always ship with the newest patch-version, as 5.0.0 is very outdated and does not include any patches that came after.
I am aware that minimal-mistakes should be kept minimal (and therefore not all requests can be met that only target specific individuals), but I assume that this patch should come in handy for a large-user base as there is no reason to limit ourselves to an old version if we can dynamically load always the latest release with @latest.

[iBug]

FYI, the front page of jsDelivr shows that @3 means any version with major=3. So the current implementation does automatically load the latest 5.x version of Font Awesome (currently 5.15.4). It does not, as you've noticed, load any FA v6.