[unmaintained/2024.1 only] Fix the tarballs pointer

Closes-Bug: #2134456
Change-Id: I68e6766a794ed25878c85e88f33722578184d141
Signed-off-by: Rafal Lewandowski <rafal@stackhpc.com>

Author: g0rgamesh

kolla/common/config.py

@@ -381,7 +381,7 @@ def parse(conf, args, usage=None, prog=None,
     # NOTE(jeffrey4l): set the default base tag based on the
     # base option
     conf.set_default('base_tag', DEFAULT_BASE_TAGS[conf.base]['tag'])
-    prefix = '' if conf.openstack_release == 'master' else 'stable-'
+    prefix = '' if conf.openstack_release == 'master' else 'unmaintained-'
     openstack_branch = '{}{}'.format(prefix, conf.openstack_release)
     openstack_branch_slashed = openstack_branch.replace('-', '/')
     conf.set_default('openstack_branch', openstack_branch)