[glance] 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: I27c484372f29e194b77e82c8b16f1efa59a93bcb

deliverables/pike/glance-store.yaml

@@ -13,6 +13,10 @@ releases:
     projects:
       - repo: openstack/glance_store
         hash: 49c915f498fc8d91c98fcf4e07ceecdcf167fc5a
+  - projects:
+      - hash: 49c915f498fc8d91c98fcf4e07ceecdcf167fc5a
+        repo: openstack/glance_store
+    version: pike-em
 branches:
   - name: stable/pike
     location: 0.21.0

deliverables/pike/glance.yaml

@@ -43,5 +43,9 @@ releases:
       - hash: 16a04e64aff661bd98d9f605e7d0a7ef97ea83d6
         repo: openstack/glance
     version: 15.0.2
+  - projects:
+      - hash: 16a04e64aff661bd98d9f605e7d0a7ef97ea83d6
+        repo: openstack/glance
+    version: pike-em
 repository-settings:
   openstack/glance: {}

deliverables/pike/python-glanceclient.yaml

@@ -19,6 +19,10 @@ releases:
       - hash: 2dfd7c7531724751116930accde87486fde03b01
         repo: openstack/python-glanceclient
     version: 2.8.1
+  - projects:
+      - hash: 2dfd7c7531724751116930accde87486fde03b01
+        repo: openstack/python-glanceclient
+    version: pike-em
 team: glance
 type: library
 repository-settings: