Ensure pip/setuptools/wheel are up to date in the utility venv

To ensure consistency, we make sure that the venv used for the
utility container has an up to date and the right versions of
pip/setuptools/wheel.

Without this, on some distributions, we get an obscure error
stating that the wheels from the repo are not compatible with
the python version.

We also update the repo_build role SHA to include the following
patches for a similar reason:
https://review.openstack.org/615213
https://review.openstack.org/615525
https://review.openstack.org/615876

Finally, due to changes in the rabbitmq yum repo GPG keys, we
also need to update the rabbitmq_server repo SHA to include
the update for that:
https://review.openstack.org/616218

Change-Id: Id66ca539984683d7340b50d3f4364c7836251881

ansible-role-requirements.yml

@@ -145,11 +145,11 @@
 - name: rabbitmq_server
   scm: git
   src: https://git.openstack.org/openstack/openstack-ansible-rabbitmq_server
-  version: 55a66fa0baaa49aeeaa0cb4672c87e8003f17b26
+  version: deccf93bdda1aa873b956418168368284509c99b
 - name: repo_build
   scm: git
   src: https://git.openstack.org/openstack/openstack-ansible-repo_build
-  version: b9960a02f3111b0adba0d24c76621cc3b76805a7
+  version: 630a6dfdcb46ba719ddb7fd7a4875259c5602b15
 - name: repo_server
   scm: git
   src: https://git.openstack.org/openstack/openstack-ansible-repo_server

playbooks/utility-install.yml

@@ -105,6 +105,23 @@
           args:
             creates: "{{ utility_venv_bin }}/activate"
 
+        - name: Upgrade pip/setuptools/wheel to the versions we want
+          pip:
+            name:
+              - pip
+              - setuptools
+              - wheel
+            state: "{{ utility_pip_package_state }}"
+            virtualenv: "{{ utility_venv_bin | dirname }}"
+            virtualenv_site_packages: "no"
+            extra_args: >-
+              {{ (pip_install_upper_constraints is defined) | ternary('--constraint ' + pip_install_upper_constraints | default(''),'') }}
+              {{ pip_install_options | default('') }}
+          register: install_packages
+          until: install_packages is success
+          retries: 5
+          delay: 2
+
         - name: Install pip packages
           pip:
             name: "{{ _openstack_client_list | union(utility_pip_packages) }}"