wheel-build: only install afs client for publish jobs

The base build jobs don't need to interact with AFS, so remove the
client install.

The publish jobs run the wheel builds then but copy the files to the
AFS volumes.  Add the openafs-client role to these.

The release jobs run after the publish jobs and essentially do a "vos
release" on the volumes that were just populated by the publish jobs.
These run on the executor (which is already an AFS client) so nothing
to do here.

Change-Id: Iaa7c2ad23930fcdbd10a952d11e1647fa6e57b3b

zuul.d/jobs.yaml

@@ -986,7 +986,6 @@
     description: |
       Base job for building wheels published in OpenStack CI mirrors.
     pre-run:
-      - playbooks/openafs-client/setup.yaml
       - playbooks/wheel/pre.yaml
     run: playbooks/wheel/build.yaml
     post-run: playbooks/wheel/post-base.yaml
@@ -1018,6 +1017,7 @@
     description: |
       Publish CentOS 7 wheels for OpenStack CI mirrors.
     parent: build-wheel-mirror-centos-7
+    pre-run: playbooks/openafs-client/setup.yaml
     post-run: playbooks/publish/wheel-mirror.yaml
     final: true
     secrets:
@@ -1046,6 +1046,7 @@
     parent: build-wheel-mirror-ubuntu-bionic
     description: |
       Publish Ubuntu Bionic wheels for OpenStack CI mirrors.
+    pre-run: playbooks/openafs-client/setup.yaml
     post-run: playbooks/publish/wheel-mirror.yaml
     final: true
     secrets:
@@ -1074,6 +1075,7 @@
     parent: build-wheel-mirror-ubuntu-trusty
     description: |
       Publish Ubuntu Trusty wheels for OpenStack CI mirrors.
+    pre-run: playbooks/openafs-client/setup.yaml
     post-run: playbooks/publish/wheel-mirror.yaml
     final: true
     secrets:
@@ -1102,6 +1104,7 @@
     parent: build-wheel-mirror-ubuntu-xenial
     description: |
       Publish Ubuntu Xenial wheels for OpenStack CI mirrors.
+    pre-run: playbooks/openafs-client/setup.yaml
     post-run: playbooks/publish/wheel-mirror.yaml
     final: true
     secrets:
@@ -1130,6 +1133,7 @@
     parent: build-wheel-mirror-ubuntu-xenial-arm64
     description: |
       Publish Ubuntu Xenial ARM64 wheels for OpenStack CI mirrors.
+    pre-run: playbooks/openafs-client/setup.yaml
     post-run: playbooks/publish/wheel-mirror.yaml
     final: true
     secrets: