sysutils/toybox: Update to 0.8.4

Changelog:

• new commands: sha3sum and watchdog
• new command features:
  • sed -s flag
  • cpio --no-preserve-owner now affects archive creation
  • Elliott added tar -I and multi-type find -type a,b,c support
  • Mark Salyzyn added xargs -P to run parallel job
  • the ps and top commands now autodetect pid length
  • top adjusts units for memory display based on system size
  • toysh and mkroot: lots of new work on toysh: 29 commits to sh.c since last release, adding 1500 lines and deleting 700, plus a bunch of sh.tests entries). Implemented since last release:
  • wildcards
  • case/esac and select
  • brace expansion sequences (ala {1..10..2} and {a..z})
  • the remaining variable slice types ${a#y} ${a%y} ${a^y} ${a,y} ${a/search/replace}
  • the "source" shell builtin
  • the start of job control
  • several bugfixes

PR: 251507
Submitted by: Vidar Karlsen (maintainer)