Fix bootmodes + add grub to CI dependencies

Author: Mohammed Naser

.github/workflows/build-iso.yaml

@@ -41,6 +41,7 @@ jobs:
             dosfstools \
             mtools \
             arch-install-scripts \
+            grub \
             go \
             rust \
             cargo \

configs/releng/profiledef.sh

@@ -7,9 +7,7 @@ iso_application="OSC Linux — Linux Committee"
 iso_version="$(date --date="@${SOURCE_DATE_EPOCH:-$(date +%s)}" +%Y.%m.%d)"
 install_dir="arch"
 buildmodes=('iso')
-bootmodes=('bios.syslinux.mbr' 'bios.syslinux.eltorito'
-           'uefi-ia32.grub.esp' 'uefi-x64.grub.esp'
-           'uefi-ia32.grub.eltorito' 'uefi-x64.grub.eltorito')
+bootmodes=('bios.syslinux' 'uefi.grub')
 arch="x86_64"
 pacman_conf="pacman.conf"
 airootfs_image_type="squashfs"
@@ -19,10 +17,11 @@ file_permissions=(
   ["/etc/shadow"]="0:0:400"
   ["/root"]="0:0:750"
   ["/root/.automated_script.sh"]="0:0:755"
-  ["/root/customize_airootfs.sh"]="0:0:755"
   ["/root/.gnupg"]="0:0:700"
   ["/usr/local/bin/choose-mirror"]="0:0:755"
   ["/usr/local/bin/Installation_guide"]="0:0:755"
   ["/usr/local/bin/livecd-sound"]="0:0:755"
   ["/usr/local/bin/arch-installer"]="0:0:755"
+  ["/usr/local/bin/welcome-app"]="0:0:755"
+  ["/root/customize_airootfs.sh"]="0:0:755"
 )