Fix kolla_toolbox_pip_virtualenv_packages override

backport: train, stein, rocky

Override in filter needs to follow the rule:
<image_name>_<call_type>_<override/append/remove>
`call_type` for `kolla_toolbox_pip_virtualenv_packages` should be
`pip_virtualenv_packages`, and `pip_packages` can't match with
`kolla_toolbox_pip_virtualenv_packages`, this makes
the value can't be overrode in template override.

Change-Id: I1dbe2dfd4bce73ce2285f45f997d45b5dcc95f4c
Closes-bug: #1865119
(cherry picked from commit 74d5a66)

Author: angeiv

docker/kolla-toolbox/Dockerfile.j2

@@ -54,7 +54,7 @@ LABEL maintainer="{{ maintainer }}" name="{{ image_name }}" build-date="{{ build
         'virtualenv'
     ] %}
 
-RUN {{ macros.install_pip(kolla_toolbox_pip_virtualenv_packages|customizable("pip_packages"), constraints=false) }} \
+RUN {{ macros.install_pip(kolla_toolbox_pip_virtualenv_packages | customizable("pip_virtualenv_packages"), constraints=false) }} \
     && virtualenv --system-site-packages {{ virtualenv_path }}
 
 ENV PATH {{ virtualenv_path }}/bin:$PATH

releasenotes/notes/fix-kolla-toolbox-venv-customisation-dc66f7bc621908a8.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Fix ``kolla_toolbox_pip_virtualenv_packages`` customisation.
+    `LP#1865119 <https://launchpad.net/bugs/1865119>`__