gio: should use relative path to find modules via g_win32_get_package_installation_directory_of_module()
One thing that we are seeing on windows is that the gstgio plugin is trying to open files from the directory where it was initially built. See i.e https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/blob/master/gst/gio/gstgioelement.c#L242
Instead it should use a relative path to the one from the main executable i.e calling g_win32_get_package_installation_directory_of_module