[solum] create pike-em tag against final releases

This is a procedural review to transition pike into extended maintenance by
creating the pike-em tag

It's possible that the release isn't needed (for example if there are no code
changes sine the previous release, sadly that's non-trivial to detect en masse.

If you are the PTL or release liaison for this team please +1 this review
if it is ready or -1 and take over the review to correct mistakes.

Change-Id: I9410bc4f1e9a76d53c28aae4ada159d42777d1dd

deliverables/pike/python-solumclient.yaml

@@ -20,6 +20,10 @@ releases:
       - hash: 6f5d8cf8d870746edfd291f62809c3f725a41e5b
         repo: openstack/python-solumclient
     version: 2.5.1
+  - projects:
+      - hash: 6f5d8cf8d870746edfd291f62809c3f725a41e5b
+        repo: openstack/python-solumclient
+    version: pike-em
 branches:
   - name: stable/pike
     location: 2.5.0

deliverables/pike/solum-dashboard.yaml

@@ -19,5 +19,9 @@ releases:
       - hash: ba5eb934c2a1fb029edd7774737831658e736188
         repo: openstack/solum-dashboard
     version: 2.2.1
+  - projects:
+      - hash: ba5eb934c2a1fb029edd7774737831658e736188
+        repo: openstack/solum-dashboard
+    version: pike-em
 repository-settings:
   openstack/solum-dashboard: {}

deliverables/pike/solum.yaml

@@ -19,6 +19,10 @@ releases:
       - hash: da251dc710bc45d6c1f86f68f966c466890f5787
         repo: openstack/solum
     version: 5.4.1
+  - projects:
+      - hash: da251dc710bc45d6c1f86f68f966c466890f5787
+        repo: openstack/solum
+    version: pike-em
 release-notes: https://docs.openstack.org/releasenotes/solum/pike.html
 repository-settings:
   openstack/solum: {}