Fix `sage-get-system-packages install-requires` after #29665#36979

Merged

vbraun merged 2 commits intosagemath:developfrom mkoeppe:sage-get-system-packages-install-requires

Jan 14, 2024

+24-12

Commits on Dec 29, 2023

build/bin/sage-get-system-packages (install-requires[-toml], pip): Do not require ENABLE_SYSTEM_SITE_PACKAGES=yes
mkoeppe
committed

Commits on Dec 31, 2023

build/bin/sage-get-system-packages: Add/update comments
mkoeppe
committed