jobs/ttcn3: run io_uring testsuites on all nodes

After most recent patches from Pau were merged, the io_uring testsuites
run on all jenkins nodes with the ttcn3 label again!

host2-deb11build-ansible has an older host kernel and needs ulimit
memlock increased to 1 GB. I've tried out e.g. 500 MB and it isn't
enough.

Closes: OS#6405
Change-Id: I59b9a7c3928281a0557c17629029adcbc5ae7410
diff --git a/jobs/ttcn3-testsuites.yml b/jobs/ttcn3-testsuites.yml
index a60c2a6..2e01645 100644
--- a/jobs/ttcn3-testsuites.yml
+++ b/jobs/ttcn3-testsuites.yml
@@ -219,25 +219,18 @@
       # With LIBOSMO_IO_BACKEND=IO_URING (OS#6357)
       - ttcn3-bsc-test-io_uring:
           timer: H 11 * * *
-          node: io_uring  # OS#6405
       - ttcn3-msc-test-io_uring:
           timer: H 11 * * *
-          node: io_uring  # OS#6405
       - ttcn3-hnbgw-test-io_uring:
           timer: H 11 * * *
-          node: io_uring  # OS#6405
       - ttcn3-gbproxy-test-io_uring:
           timer: H 11 * * *
-          node: io_uring  # OS#6405
       - ttcn3-sgsn-test-io_uring:
           timer: H 11 * * *
-          node: io_uring  # OS#6405
       - ttcn3-stp-test-io_uring:
           timer: H 11 * * *
-          node: io_uring  # OS#6405
       - ttcn3-mgw-test-io_uring:
           timer: H 11 * * *
-          node: io_uring  # OS#6405
 
 - job-template:
     name: '{job-name}'
@@ -308,7 +301,8 @@
                   ;;
               *-io_uring)
                   DIR="$(echo "{job-name}" | sed s/\-io_uring$//)"
-                  export DOCKER_ARGS="-e LIBOSMO_IO_BACKEND=IO_URING"
+                  # OS#6405: set memlock to 1 GB for older kernels
+                  export DOCKER_ARGS="-e LIBOSMO_IO_BACKEND=IO_URING --ulimit memlock=1000000"
                   ;;
               *-latest)
                   DIR="$(echo "{job-name}" | sed s/\-latest$//)"