Ovirt add host retry doc backport (#58718)

* add changelog

* add docs about retry (#58625)

changelogs/fragments/58625-ovirt_add_host_retry_doc.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - ovirt add host retry example to documentation BZ(https://bugzilla.redhat.com/show_bug.cgi?id=1719271)

lib/ansible/modules/cloud/ovirt/ovirt_host.py

@@ -232,6 +232,15 @@ EXAMPLES = '''
     name: myhost
     force: True
 
+# Retry removing host when failed (https://bugzilla.redhat.com/show_bug.cgi?id=1719271)
+- ovirt_host:
+    state: absent
+    name: myhost
+  register: result
+  until: not result.failed
+  retries: 6
+  delay: 20
+
 # Change host Name
 - ovirt_host:
     id: 00000000-0000-0000-0000-000000000000