[fonts] Install will silently fail if curl is not installed

[Tyriar]

❯ ./modules/fonts/install-hack.sh 
./modules/fonts/install-hack.sh: line 7: curl: command not found
Archive:  /tmp/tmp.ZZrebRQwFz
  End-of-central-directory signature not found.  Either this file is not
  a zipfile, or it constitutes one disk of a multi-part archive.  In the
  latter case the central directory and zipfile comment will be found on
  the last disk(s) of this archive.
unzip:  cannot find zipfile directory in one of /tmp/tmp.ZZrebRQwFz or
        /tmp/tmp.ZZrebRQwFz.zip, and cannot find /tmp/tmp.ZZrebRQwFz.ZIP, period.