Use haproxy base URL for entity_id in cadoles-pod-shibboleth-sp-v3.conf.j2

We need a common entity_id if we want 2 hydra with a same SAML Metadata

templates/cadoles-pod-shibboleth-sp-v3.conf.j2

@@ -4,7 +4,7 @@ PODMAN_ARGS="\
     --network=slirp4netns:allow_host_loopback=true \
     --replace --name 'cadoles-pod-shibboleth-sp-v3' \
     --tz=local \
-    -e 'SP_ENTITY_ID=http://{{ ansible_fqdn }}{{ haproxy_hydra_saml_base_path }}' \
+    -e 'SP_ENTITY_ID={{ haproxy_public_base_url }}{{ haproxy_hydra_saml_base_path }}' \
     -e 'SP_LOG_LEVEL={{ hydra_saml_sp_log_level }}' \
     -e 'IDP_ENTITY_ID={{ hydra_saml_idp_entity_id }}' \
     -e 'IDP_METADATA_URL={{ hydra_saml_idp_metadata_url }}' \