Add include-pypi-link to python deliverables

Recent releases of python-magnumclient and python-senlinclient did not
generate the expected 'new-release' reviews in openstack/requirements.
This is because they're missing the include-pypi-link key.

While correcting this I did a quick check of
deliverables/newton/python-*yaml and added it to files that are missing
it *and* are mentioned in upper-constraints.txt

Change-Id: I3d99f9a3891ca14ba3d6591a96d4f4b44f73ef54

deliverables/newton/python-congressclient.yaml

@@ -2,6 +2,7 @@
 launchpad: python-congressclient
 team: congress
 send-announcements-to: openstack-dev@lists.openstack.org
+include-pypi-link: yes
 releases:
   - version: 1.3.0
     projects:

deliverables/newton/python-magnumclient.yaml

@@ -2,6 +2,7 @@
 launchpad: python-magnumclient
 team: magnum
 send-announcements-to: openstack-announce@lists.openstack.org
+include-pypi-link: yes
 releases:
   - version: 2.1.0
     projects:

deliverables/newton/python-searchlightclient.yaml

@@ -2,6 +2,7 @@
 launchpad: python-searchlightclient
 team: searchlight
 send-announcements-to: openstack-announce@lists.openstack.org
+include-pypi-link: yes
 releases:
   - version: 1.0.0
     projects:

deliverables/newton/python-senlinclient.yaml

@@ -2,6 +2,7 @@
 launchpad: python-senlinclient
 team: senlin
 send-announcements-to: openstack-dev@lists.openstack.org
+include-pypi-link: yes
 releases:
   - version: 0.5.0
     projects:

deliverables/newton/python-watcherclient.yaml

@@ -2,6 +2,7 @@
 launchpad: watcher
 team: watcher
 send-announcements-to: openstack-announce@lists.openstack.org
+include-pypi-link: yes
 releases:
   - version: 0.23.0
     projects: