filesystems/libblkid: enable symbol versioning

Some ports depend on versioned symbols in libblkid, and the meson
test appears off because it tries to look for the --version-script
without having build the library, and assumes the linker does
not support the --version-script. Force versioning.

Approved by: portmgr@ (blanket)

(cherry picked from commit ccd11d773505a90ed37208bc2dff1d4a8d3ec495)
[commit message on 2025Q3 fixed to read libblkid everywhere,
and not show the copy-and-paste error libuuid]