jobs/ttcn3-testsuites.yml: add ttcn3-bts-test-io_uring

osmo-bts in theory can also benefit from io_uring, at least because
it can maintain multiple RTP connections for voice calls.  Let's
execute the respective testsuite with io_uring too.

Change-Id: I3af791103d863290a53c9ce2d1a8d1d9e42e91c7
diff --git a/jobs/ttcn3-testsuites.yml b/jobs/ttcn3-testsuites.yml
index f436e26..6780f74 100644
--- a/jobs/ttcn3-testsuites.yml
+++ b/jobs/ttcn3-testsuites.yml
@@ -236,6 +236,8 @@
           timer: H 11 * * *
       - ttcn3-mgw-test-io_uring:
           timer: H 11 * * *
+      - ttcn3-bts-test-io_uring:
+          timer: H 11 * * *
 
 - job-template:
     name: '{job-name}'