mgr/snap_schedule: replace .snap with the client configured snap dir name Reviewed-by: Rishabh Dave <ridave@redhat.com> Reviewed-by: Kotresh HR <khiremat@redhat.com> Reviewed-by: Dhairya Parmar <dparmar@redhat.com> Reviewed-by: Nikhilkumar Shelke <nshelke@redhat.com>