fix: correct dependency checks for efitools and sbsign

[Xapier14]

Summary

• Fixed a mismatched dependency check where efitools was being tested by looking for sbsign, which is provided by a completely separate package (sbsigntool/sbsigntools). The check now correctly tests for sign-efi-sig-list, which is the command actually provided by efitools.
• Added a missing dependency check for sbsign (used when signing EFI binaries), which was left uncovered by the original check.
• Extended check_and_install to accept optional per-manager package names (args 3–5 for apt/dnf/pacman), since sbsign ships under different package names across distros (sbsigntool on Debian/Ubuntu, sbsigntools on Fedora and Arch).

Problem

The original line check_and_install efitools sbsign was broken in two ways:

1. It probed for sbsign to decide whether efitools was installed — but sbsign belongs to a different package entirely. A system with efitools but without sbsigntool would pass the check silently, then fail later when sign-efi-sig-list or cert-to-efi-sig-list was called.
2. After fixing the efitools check, sbsign itself (called at the EFI binary signing step) had no check at all, meaning it could be missing on a fresh system with no clear error.

Package name reference

Command	Debian/Ubuntu	Fedora	Arch
sign-efi-sig-list, cert-to-efi-sig-list	efitools	efitools	efitools
sbsign	sbsigntool	sbsigntools	sbsigntools