CI: install glib for the MSYS2 jobs to make pkgconf happy
Fixes a test when using pkgconf instead of pkg-config.
The .pc file in the pkgconfig-gen test requires it and pkgconf seems be
stricter here and fails to validate.
@@ -56,6 +56,7 @@ jobs:
mercurial
lcov
mingw-w64-${{ matrix.MSYS2_ARCH }}-cmake
+ mingw-w64-${{ matrix.MSYS2_ARCH }}-glib2
mingw-w64-${{ matrix.MSYS2_ARCH }}-libxml2
mingw-w64-${{ matrix.MSYS2_ARCH }}-ninja
mingw-w64-${{ matrix.MSYS2_ARCH }}-pkg-config
