Switch to Antelope images (#1227)
diff --git a/images/tempest/Dockerfile b/images/tempest/Dockerfile
index 95746a8..93da97f 100644
--- a/images/tempest/Dockerfile
+++ b/images/tempest/Dockerfile
@@ -37,7 +37,7 @@
RUN git -C /src/neutron-tempest-plugin fetch --unshallow
ADD --keep-git-dir=true https://opendev.org/openstack/octavia-tempest-plugin.git#master /src/octavia-tempest-plugin
RUN git -C /src/octavia-tempest-plugin fetch --unshallow
-ADD https://releases.openstack.org/constraints/upper/master /upper-constraints.txt
+ADD https://releases.openstack.org/constraints/upper/2023.1 /upper-constraints.txt
RUN --mount=type=cache,mode=0755,target=/root/.cache/pip,sharing=private <<EOF bash -xe
pip3 install \
--constraint /upper-constraints.txt \