[libshumate] tests: Listen only on IPv4

[Marcus Lundblad <mlundblad src gnome org>]

commit 1eaba7f8857502a767efd5acf046e881d8ed84c2
Author: James Westman <james jwestman net>
Date:   Fri Apr 9 10:45:34 2021 -0500

    tests: Listen only on IPv4
    
    Some of the CI runners don't support IPv6, so only listen on IPv4.

 tests/test-tile-server.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/tests/test-tile-server.c b/tests/test-tile-server.c
index 6820bc4..a81d97a 100644
--- a/tests/test-tile-server.c
+++ b/tests/test-tile-server.c
@@ -114,7 +114,7 @@ test_tile_server_start (TestTileServer *self)
   g_autoptr(GSList) uris = NULL;
   soup_server_add_handler (self->server, NULL, server_callback, self, NULL);
 
-  soup_server_listen_local (self->server, 0, 0, &error);
+  soup_server_listen_local (self->server, 0, SOUP_SERVER_LISTEN_IPV4_ONLY, &error);
   g_assert_no_error (error);
 
   uris = soup_server_get_uris (self->server);