ci: Add ci-kdl to test-base container

It's useful to monitor things on your devices.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Valentine Burley <valentine.burley@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34451>

.gitlab-ci/container/debian/test-base.sh

@@ -79,6 +79,7 @@ EPHEMERAL=(
     python3-dev
     python3-pip
     python3-setuptools
+    python3-venv
     python3-wheel
     wayland-protocols
     xz-utils
@@ -189,6 +190,10 @@ pip3 install --break-system-packages yq
 
 section_end debian_setup
 
+############### Build ci-kdl
+
+. .gitlab-ci/container/build-kdl.sh
+
 ############### Download prebuilt kernel and firmware
 
 if [ "$DEBIAN_ARCH" = amd64 ]; then