[glib: 8/10] tests: Mark gdbus-threading test as slow

[Xavier Claessens <xclaesse src gnome org>]

commit 6438e2c731e7e6c3c248c0c575b0e78d2518b6a2
Author: Philip Withnall <withnall endlessm com>
Date:   Fri Jul 6 15:01:40 2018 +0100

    tests: Mark gdbus-threading test as slow
    
    It often takes a bit more than 30s on my local machine to run.
    
    Signed-off-by: Philip Withnall <withnall endlessm com>

 gio/tests/meson.build | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/gio/tests/meson.build b/gio/tests/meson.build
index 130a51d03..286c5d6ed 100644
--- a/gio/tests/meson.build
+++ b/gio/tests/meson.build
@@ -70,6 +70,7 @@ gio_tests = [
 slow_tests = [
   'actions',
   'gdbus-export',
+  'gdbus-threading',
   'testfilemonitor',
 ]