Fix puppet install and execution issues

When adding a repository in Ubuntu, one must run apt-get update prior
to trying to install a package from the new repository. Additionally
when this new package installs binaries in an alternative path, you
need to ensure the PATH is properly updated for it to work.

Change-Id: I285baa486221e496baa8e205bd7a92c33d07dd2f

jenkins/jobs/macros.yaml

@@ -510,6 +510,7 @@
           elif [ -f /usr/bin/apt-get ]; then
               wget https://apt.puppetlabs.com/puppetlabs-release-pc1-xenial.deb -O /tmp/puppet.deb
               sudo dpkg -i /tmp/puppet.deb
+              sudo apt-get update
               sudo apt-get install puppet-agent
               rm -rf /tmp/puppet.deb
           fi

jenkins/jobs/puppet-module-jobs.yaml

@@ -350,6 +350,9 @@
           project: $ZUUL_PROJECT
       - shell: |
           #!/bin/bash -xe
+          # NOTE(mwhahaha): puppet from puppet-agent-install builder is not in
+          # the standard path, so add puppetlabs bin to the path
+          export PATH=$PATH:/opt/puppetlabs/bin
           cd $ZUUL_PROJECT
           # try to find the modulename, ex: puppet-aodh
           # we have to use sed because workspace is puppet-aodh-branch-tarball