Release python-brick-cinderclient-ext 0.7.0

This release includes a fix that for the new Cinder
attach API's.  The brick-cinderclient-ext hadn't been
updated to use attachment.complete(attachment_id) as is
required for microversion 3.44.  This release adds the new
complete call.

Making it a feature release for updated dependencies and
added suuport for attachment.complete .

Change-Id: I8e58787b0137cfc7fb5e3e5c7da491f102f50961

deliverables/queens/python-brick-cinderclient-ext.yaml

@@ -9,3 +9,7 @@ releases:
       - hash: 17e94f506b18ff1354ce8938467e31f6ae867c35
         repo: openstack/python-brick-cinderclient-ext
     version: 0.6.0
+  - projects:
+      - hash: bf4d0ca25b0917dbe52c4a17e6603fa2f0b583e1
+        repo: openstack/python-brick-cinderclient-ext
+    version: 0.7.0