[gnome-builder] git: flush pending operations during shutdown to help valgrind

[Christian Hergert <chergert src gnome org>]

commit 9f4f5e0ab270716fb93a7e14559f1ce967d0be68
Author: Christian Hergert <chergert redhat com>
Date:   Thu May 6 13:34:47 2021 -0700

    git: flush pending operations during shutdown to help valgrind

 src/plugins/git/daemon/test-git.c | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/src/plugins/git/daemon/test-git.c b/src/plugins/git/daemon/test-git.c
index 8200534fc..6c9b3129b 100644
--- a/src/plugins/git/daemon/test-git.c
+++ b/src/plugins/git/daemon/test-git.c
@@ -517,5 +517,8 @@ main (gint argc,
 
   g_main_loop_run (main_loop);
 
+  while (g_main_context_pending (NULL))
+    g_main_context_iteration (NULL, FALSE);
+
   return EXIT_SUCCESS;
 }