ci - start registry on host network

This seems to resolve some flakyness experienced with the
upgrade job where that local registry is used to store
the operator and bundle container images.

Change-Id: I3ba5a8058753865d7d8b0c9bfd5e363b82f70263

Author: morucci

roles/setup-local-registry/tasks/main.yaml

@@ -32,7 +32,7 @@
 
 - name: Start the podman registry container
   ansible.builtin.command: |
-    podman container run -dt -p 5000:5000 --name registry \
+    podman container run -dt --network host --name registry \
     --volume registry:/var/lib/registry:Z quay.io/software-factory/registry:2
 
 - name: Wait for the registry to be up