Require 389-ds 1.4.0.21

1.4.0.21 fixes a problem with create_suffix_entry and uses
os.path.expanduser() instead of getenv('HOME').

See: https://pagure.io/389-ds-base/pull-request/50121
See: https://pagure.io/389-ds-base/issue/49984
See: https://pagure.io/389-ds-base/issue/50152
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>

ipaserver/install/dsinstance.py

@@ -526,10 +526,6 @@ class DsInstance(service.Service):
         self.backup_state("serverid", self.serverid)
         self.fstore.backup_file(paths.SYSCONFIG_DIRSRV)
 
-        # workaround for https://pagure.io/389-ds-base/issue/50152
-        if 'HOME' not in os.environ:
-            os.environ['HOME'] = api.env.home
-
         # The new installer is api driven. We can pass it a log function
         # and it will use it. Because of this, we can pass verbose true,
         # and allow our logger to control the display based on level.