Add spice_session_get_proxy_uri to spice-glib-sym-file
Add spice_session_get_proxy_uri to spice-glib-sym-file

It was only added to map-file.

flexVDI/spice-gtk,elmarco/spice-gtk,elmarco/spice-gtk,SPICE/spice-gtk,freedesktop-unofficial-mirror/spice__spice-gtk,fgouget/spice-gtk,guodong/spice-gtk,guodong/spice-gtk,elmarco/spice-gtk,Fantu/spice-gtk,freedesktop-unofficial-mirror/spice__spice-gtk,Fantu/spice-gtk,freedesktop-unofficial-mirror/spice__spice-gtk,flexVDI/spice-gtk,guodong/spice-gtk,Fantu/spice-gtk,guodong/spice-gtk,SPICE/spice-gtk,SPICE/spice-gtk,elmarco/spice-gtk,freedesktop-unofficial-mirror/spice__spice-gtk,Fantu/spice-gtk,fgouget/spice-gtk,fgouget/spice-gtk,SPICE/spice-gtk