`Generic Package Registry` should allow `:` to support archlinux `pacman`

[loynoir]

Feature Description

Generic Package Registry should support archlinux pacman

https://docs.gitea.com/usage/packages/generic

The filename. It can contain only lowercase letters (a-z), uppercase letter (A-Z), numbers (0-9), dots (.), hyphens (-), pluses (+), or underscores (_).

For example, archlinux core repo contains :.

https://geo.mirror.pkgbuild.com/core/os/x86_64/

dialog-1:1.3_20240101-1-x86_64.pkg.tar.zst
dialog-1:1.3_20240101-1-x86_64.pkg.tar.zst.sig
grub-2:2.12-2-x86_64.pkg.tar.zst
grub-2:2.12-2-x86_64.pkg.tar.zst.sig
iptables-1:1.8.10-1-x86_64.pkg.tar.zst
iptables-1:1.8.10-1-x86_64.pkg.tar.zst.sig
iptables-nft-1:1.8.10-1-x86_64.pkg.tar.zst
iptables-nft-1:1.8.10-1-x86_64.pkg.tar.zst.sig
less-1:643-1-x86_64.pkg.tar.zst
less-1:643-1-x86_64.pkg.tar.zst.sig
lz4-1:1.9.4-3-x86_64.pkg.tar.zst
lz4-1:1.9.4-3-x86_64.pkg.tar.zst.sig
minizip-1:1.3.1-1-x86_64.pkg.tar.zst
minizip-1:1.3.1-1-x86_64.pkg.tar.zst.sig
vi-1:070224-6-x86_64.pkg.tar.zst
vi-1:070224-6-x86_64.pkg.tar.zst.sig
wpa_supplicant-2:2.10-8-x86_64.pkg.tar.zst
wpa_supplicant-2:2.10-8-x86_64.pkg.tar.zst.sig
zlib-1:1.3.1-1-x86_64.pkg.tar.zst
zlib-1:1.3.1-1-x86_64.pkg.tar.zst.sig

Would be nice

• or let Generic Package Registry to allow :.

• or support Pacman Package Registry.

Screenshots

No response

[wxiaoguang]

agree to relax the filename checking.

-> Relax generic package filename check #30135