These test can take longer than most under valgrind, so give them a
little more time until they timeout.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-editing-services/-/merge_requests/160>
ges_init ();
suite_add_tcase (s, tc_chain);
+ /* give the tests a little more time than the default
+ * CK_DEFAULT_TIMEOUT=20, this is sometimes needed for running under
+ * valgrind */
+ tcase_set_timeout (tc_chain, 40.0);
+
tcase_add_test (tc_chain, test_tempochange_play);
tcase_add_test (tc_chain, test_tempochange_seek);