[swift] 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: I3670a2ac5f8a5390eca96d32668579f17d866575

deliverables/pike/python-swiftclient.yaml

@@ -14,6 +14,10 @@ releases:
       - hash: 74a4a19b714a9496bf0967cb3482a59335803c82
         repo: openstack/python-swiftclient
     version: 3.4.1
+  - projects:
+      - hash: 74a4a19b714a9496bf0967cb3482a59335803c82
+        repo: openstack/python-swiftclient
+    version: pike-em
 branches:
   - name: stable/pike
     location: 3.4.0

deliverables/pike/swift.yaml

@@ -30,5 +30,9 @@ releases:
     projects:
       - repo: openstack/swift
         hash: 472ec6b70cddca0043823f5d3dcd135ed6082cd8
+  - projects:
+      - hash: 472ec6b70cddca0043823f5d3dcd135ed6082cd8
+        repo: openstack/swift
+    version: pike-em
 repository-settings:
   openstack/swift: {}