Release openstack-doc-tools 1.10

I screwed up - the 1.9 release should include one more change and I
passed the wrong SHA in. Let's go to 1.10 with the real fix.

Change-Id: I8107c4b65dd2ab42367f4bdbb09e3ca7f580ed11

deliverables/_independent/openstack-doc-tools.yaml

@@ -96,5 +96,9 @@ releases:
     projects:
       - repo: openstack/openstack-doc-tools
         hash: 9d59e2087e62e58d8774ea3d3a83241864fecdfb
+  - version: 1.10.0
+    projects:
+      - repo: openstack/openstack-doc-tools
+        hash: a178d4b73c70dea440d92e0629f48e4208c33bc2
 repository-settings:
   openstack/openstack-doc-tools: {}