[gnome-build-meta/mcatanzaro/gstreamer-libsoup3] Update freedesktop-sdk for gstreamer libsoup3 patch

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 15b6ebb8581aedf0cbda58e87e4b9f962e985293
Author: Michael Catanzaro <mcatanzaro redhat com>
Date:   Tue Nov 23 09:38:44 2021 -0600

    Update freedesktop-sdk for gstreamer libsoup3 patch
    
    This allows GStreamer to choose between libsoup2 and libsoup3 at
    runtime.

 junction.refs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/junction.refs b/junction.refs
index fe76b3dbe..8f019743b 100644
--- a/junction.refs
+++ b/junction.refs
@@ -1,4 +1,4 @@
 projects:
   gnome:
     freedesktop-sdk.bst:
-    - ref: freedesktop-sdk-21.08.5-0-g90d9ab2076c7ebd53f14c6a3bb8a34afc6b04818
+    - ref: freedesktop-sdk-21.08.5-11-g557bf4e894324bc028d5900793994823dd02a046