Address review: preserve run-test exit and cite OTE backports

Capture run-test failure across junit synthesis, and document the
openstack-test backport PRs alongside #303.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: tusharjadhav3302

collection/stages/roles/openstack_test/tasks/run_openstack_test.yml

@@ -14,8 +14,8 @@
     openstack_test_junit_path: >-
       {{ openstack_test_results_dir }}/junit_e2e_openstack.xml
     # Upstream dropped make openstack-tests on release-4.20+ (OTE migration,
-    # openshift/openstack-test#303 / OSASINFRA-4375). Older release branches
-    # still ship the legacy target.
+    # openshift/openstack-test#303 / OSASINFRA-4375; backports #306/#307/#308).
+    # Older release branches still ship the legacy target.
     openstack_test_use_ote: "{{ discovered_openshift_release is version('4.20', '>=') }}"
 
 - name: Set openstack-test executable path for OTE
@@ -147,7 +147,7 @@
       ansible.builtin.shell: |
         set -o pipefail
         cat {{ tests_to_run_path }} | {{ openstack_test_executable }} run-test \
-          > {{ openstack_test_log_path }}
+          > {{ openstack_test_log_path }} || run_exit=$?
         python3 - {{ openstack_test_log_path }} {{ openstack_test_junit_path }} <<'PY'
         import json
         import sys
@@ -200,6 +200,7 @@
         )
         ET.ElementTree(suite).write(junit_path, encoding="utf-8", xml_declaration=True)
         PY
+        exit ${run_exit:-0}
       environment:
         OS_CLOUD: "{{ user_cloud }}"
         KUBECONFIG: "{{ kubeconfig }}"