Do not run timesync checks on deployment host

Kolla-ansible install python docker library in role/baremetal
to group/baremetal, because of this get container facts
for timesync checks is failing on deployment host.

This patch adding when conditional, so deployment host
will be skipped as there is no need to run timesync
checks.

Closes-Bug: #1933347
Change-Id: Ifefb9c74ee6a80cdbc458992d0196850ddfe7ffa
(cherry picked from commit 281c993)

Author: keuko

ansible/roles/prechecks/tasks/main.yml

@@ -5,6 +5,7 @@
 - include_tasks: timesync_checks.yml
   when:
     - not enable_chrony | bool
+    - inventory_hostname not in groups['deployment']|default([])
 
 - import_tasks: datetime_checks.yml
 

releasenotes/notes/bug-1933347-4031d94ef7decb3c.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Fixes an issue with timesync checks on deployment host. See `bug
+    1933347 <https://launchpad.net/bugs/1933347>`__ for details.