CI: mark pytest results as a Zuul artifact

Change-Id: Icb57b908be9c83700274c042185e4481d5ca6ea5

playbooks/kayobe-overcloud-host-configure-base/run.yml

@@ -29,3 +29,13 @@
         decrypt
         --vault-password-file {{ kayobe_venv }}/bin/kayobe-vault-password-helper
         {{ kayobe_config_src_dir }}/etc/kayobe/kolla/passwords.yml
+
+    - name: Return artifact to Zuul
+      zuul_return:
+        data:
+          zuul:
+            artifacts:
+              - name: "Unit Test Report"
+                url: "{{ inventory_hostname }}/test-results.html"
+                metadata:
+                  type: unit_test_report