test/system/255-auto-update.bats: multiple services

Wait for all generated services to be ready to be sure we can iron out
race conditions.  Also disable rollbacks to make sure we can analyze
the error if restarting a service fails.  This information may be
crucial to understand the flakes on Debian as tracked in containers#17607.

Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>

test/system/255-auto-update.bats

@@ -338,11 +338,13 @@ EOF
         fi
     done
 
-    # Only check that the last service is started. Previous services should already be activated.
-    _wait_service_ready container-$cname.service
+    # Make sure all services are ready.
+    for cname in "${cnames[@]}"; do
+        _wait_service_ready container-$cname.service
+    done
     run_podman commit --change CMD=/bin/bash $local_cname quay.io/libpod/localtest:latest
     # Exit code is expected, due to invalid 'fakevalue'
-    run_podman 125 auto-update
+    run_podman 125 auto-update --rollback=false
     update_log=$output
     is "$update_log" ".*invalid auto-update policy.*" "invalid policy setup"
     is "$update_log" ".*Error: invalid auto-update policy.*" "invalid policy setup"