Release 26.0+39.2

Changes compared to Release 25.0+39.2:

• Fix preset install condition in PKGBUILD
• Add separated mount options between steps 1 and 2 for SAMBA and system image volume (ro/rw)
• kexec updated to 2.0.29
• update_remote_systems version 7.0.0:
  • Add support for multiple tmux mode script instances
  • Add symlinks to local pacman packages (reduces memory usage)
  • efivarfs now mounted in read-only
  • Add skipped field to CSV report
  • Add support for installing additional packages via pacman
  • Add support for additional pacman arguments
  • Other bug fixes and enchantments