Skip failing test in 'test_connection_binding_match_tls_unique'
in 'tls/tests/connection.c' when building glib-networking against
GnuTLS 3.7.2.  The failure stems from the fact that
'gnutls_session_channel_binding' returns GNUTLS_E_INVALID_REQUEST
is known upstream:

  https://gitlab.gnome.org/GNOME/glib-networking/-/issues/164

diff --git a/tls/tests/connection.c b/tls/tests/connection.c
index 036df04..347c7a4 100644
--- a/tls/tests/connection.c
+++ b/tls/tests/connection.c
@@ -3037,8 +3037,6 @@ main (int   argc,
               setup_connection, test_connection_missing_server_identity, teardown_connection);
   g_test_add ("/tls/" BACKEND "/connection/peer-certificate-notify", TestConnection, NULL,
               setup_connection, test_peer_certificate_notify, teardown_connection);
-  g_test_add ("/tls/" BACKEND "/connection/binding/match-tls-unique", TestConnection, NULL,
-              setup_connection, test_connection_binding_match_tls_unique, teardown_connection);
   g_test_add ("/tls/" BACKEND "/connection/binding/match-tls-server-end-point", TestConnection, NULL,
               setup_connection, test_connection_binding_match_tls_server_end_point, teardown_connection);
   g_test_add ("/tls/" BACKEND "/connection/binding/match-tls-exporter", TestConnection, NULL,