/usr/share/ is in libgirepository1.0-dev 1.46.0-3ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gir-1.0/
/usr/share/gir-1.0/GL-1.0.gir
/usr/share/gir-1.0/libxml2-2.0.gir
/usr/share/gir-1.0/GModule-2.0.gir
/usr/share/gir-1.0/xfixes-4.0.gir
/usr/share/gir-1.0/fontconfig-2.0.gir
/usr/share/gir-1.0/GIRepository-2.0.gir
/usr/share/gir-1.0/freetype2-2.0.gir
/usr/share/gir-1.0/DBus-1.0.gir
/usr/share/gir-1.0/GLib-2.0.gir
/usr/share/gir-1.0/xft-2.0.gir
/usr/share/gir-1.0/DBusGLib-1.0.gir
/usr/share/gir-1.0/Gio-2.0.gir
/usr/share/gir-1.0/xrandr-1.3.gir
/usr/share/gir-1.0/GObject-2.0.gir
/usr/share/gir-1.0/cairo-1.0.gir
/usr/share/gir-1.0/xlib-2.0.gir
/usr/share/gir-1.0/win32-1.0.gir
/usr/share/doc/
/usr/share/doc/libgirepository1.0-dev/
/usr/share/doc/libgirepository1.0-dev/copyright
/usr/share/doc/libgirepository1.0-dev/AUTHORS
/usr/share/doc/libgirepository1.0-dev/CONTRIBUTORS
/usr/share/doc/libgirepository1.0-dev/README
/usr/share/doc/libgirepository1.0-dev/TODO
/usr/share/doc/libgirepository1.0-dev/NEWS.gz
/usr/share/doc/libgirepository1.0-dev/changelog.Debian.gz