Switch from wsgi script to wsgi module

Depends-On: https://review.opendev.org/c/openstack/openstack-ansible/+/950706
Change-Id: I918f6d3ae97a47a65afa4ca1a2ee97d4b9c46c5c

defaults/main.yml

@@ -74,7 +74,7 @@ barbican_services:
     uwsgi_port: "{{ barbican_service_port }}"
     uwsgi_overrides: "{{ barbican_uwsgi_init_overrides }}"
     wsgi_app: true
-    wsgi_name: barbican-wsgi-api
+    wsgi: "barbican.wsgi.api:application"
     start_order: 1
     uwsgi_tls: "{{ barbican_backend_ssl | ternary(barbican_uwsgi_tls, {}) }}"
   barbican-worker:

vars/main.yml

@@ -67,7 +67,6 @@ uwsgi_barbican_services: |-
            and ('wsgi_app' in value and value['wsgi_app']) %}
   {%     set _ = value.update(
            {
-             'wsgi_path':  barbican_bin ~ '/' ~ value.wsgi_name,
              'wsgi_venv': ((barbican_install_method == 'source') | ternary(barbican_bin | dirname, None)),
              'uwsgi_uid': barbican_system_user_name,
              'uwsgi_guid': barbican_system_group_name,