[libmagic] Update to 5.48

[SunBlack (SunBlack)]

• Changes comply with the maintainer guide.
• SHA512s are updated for each updated download.
• The "supports" clause reflects platforms that may be fixed by this new version, or no changes were necessary.
• Any fixed CI baseline and CI feature baseline entries are removed from that file, or no entries needed to be changed.
• All patch files in the port are applied and succeed.
• The version database is fixed by rerunning ./vcpkg x-add-version --all and committing the result.
• Exactly one version is added in each modified versions file.

[Billy O'Neal (BillyONeal)]

Thanks for the update! GPT 5.6 Sol reports:

The 5.48 public header is not consumable with MSVC. Upstream added ssize_t magic_getmaxparam(int), but the port's Windows typedef remains private to src/file.h. Consequently, including <magic.h> fails with MSVC error C2061.

Would you consider SunBlack#31 ?

[Billy O'Neal (BillyONeal)]

Thanks!