software/gitlab: use strings for slapos.cookbook:postgres

This recipe now uses strings for ip

software/gitlab/buildout.hash.cfg

@@ -54,7 +54,7 @@ md5sum = 056d7ed09e1bf20d022d3ef6b9363e00
 
 [instance-gitlab.cfg.in]
 _update_hash_filename_ = instance-gitlab.cfg.in
-md5sum = f5e7f9717eaa999fbf11ce4b6c1abb1c
+md5sum = 6effe68f7ef240780d1027dd834a562c
 
 [instance-gitlab-export.cfg.in]
 _update_hash_filename_ = instance-gitlab-export.cfg.in

software/gitlab/instance-gitlab.cfg.in

@@ -475,9 +475,8 @@ password=
 pgdata-directory = ${directory:srv}/postgresql
 
 # empty addresses - listen only on unix socket
-ipv4    = !py!set([])
-ipv6    = !py!set([])
-ipv6-random =
+ipv4    =
+ipv6    =
 port    =
 
 depend  =