Allow junos_config changes the candidate configuration only (#61969)

This allows junos_config to changes the candidate configuration only and
does not commit it as the active configuration at once w/ the
'check_commit' option.

(cherry picked from commit 483e76ee58)

changelogs/fragments/junos_config_check_commit.yaml

@@ -0,0 +1,2 @@
+bugfixes:
+- junos_config - allow validate config before committing to running configuration (https://github.com/ansible/ansible/pull/61969)

lib/ansible/modules/network/junos/junos_config.py

@@ -448,7 +448,8 @@ def main():
                 if diff:
                     if commit:
                         kwargs = {
-                            'comment': module.params['comment']
+                            'comment': module.params['comment'],
+                            'check': module.params['check_commit']
                         }
 
                         confirm = module.params['confirm']