Refresh for antelope release

Update snap version and branch for upper constraints.

Change-Id: Iedac51b82dca939eed74ed016a1d7bb8c9bd74b7

snapcraft.yaml

@@ -1,5 +1,5 @@
 name: openstackclients
-version: zed
+version: antelope
 summary: OpenStack Client tools
 description: |
   OpenStackClient (aka OSC) is a command-line client for OpenStack
@@ -180,7 +180,7 @@ parts:
       - setuptools-rust
       - Cython
     python-constraints:
-      - https://raw.githubusercontent.com/openstack/requirements/stable/zed/upper-constraints.txt
+      - https://raw.githubusercontent.com/openstack/requirements/stable/2023.1/upper-constraints.txt
     build-packages:
       - libffi-dev
       - libssl-dev

tox.ini

@@ -7,10 +7,13 @@ basepython = python3
 install_command = pip install {opts} {packages}
 setenv =
     PATH = /snap/bin:{env:PATH}
-passenv = HOME TERM
-whitelist_externals =
+passenv =
+    HOME
+    TERM
+allowlist_externals =
     sudo
     /snap/bin/snapcraft
+    {toxinidir}/tools/lxd_build.sh
 
 [testenv:snap]
 deps = -r{toxinidir}/requirements.txt