No clue why `getResourceLocationForPlayerUUID` was implemented the way it was,
that commit dates back to 2015 (332c36a), but if the skin isn't loaded yet, it
won't load it, so sometimes it just won't show properly in first person and in
the Player Overview.
This commit just calls `AbstractClientPlayer.getSkinTexture` instead.
Unclear which MC versions are affected. At some point before 1.16.4 something
else was introduced which loads the skin for us, hence why modern versions were
not affected.
42aef017c1