[zsh] Add automated arch update command

zsh/.zshrc

@@ -61,6 +61,13 @@ kush() {
   fi
 }
 
+yayup () {
+  mv ~/.asdf ~/.asdf.bak
+  yay -S --noconfirm archlinux-keyring endeavouros-keyring
+  yay -Syu --noconfirm
+  mv ~/.asdf.bak ~/.asdf
+}
+
 [ -f ~/.fzf.zsh ] && source ~/.fzf.zsh
 
 eval "$(atuin init zsh)"