Release networking-ovn 4.0.3 (Queens)

This new release include some important bug fixes for IPv6 [0] support,
integration with Octavia [1] and maintenance task fixes [2].

[0] https://review.openstack.org/596759
[1] https://review.openstack.org/601293
[2] https://review.openstack.org/592025

Change-Id: Ia68c66bc2bcc8e72ae053ee673b04b1fd31cf614

deliverables/queens/networking-ovn.yaml

@@ -39,6 +39,10 @@ releases:
       - hash: 3b0a4cd9e1c510201df851a72fec0670f75bb1e7
         repo: openstack/networking-ovn
     version: 4.0.2
+  - projects:
+      - hash: 52abcac1f2f55d93b34a36e4b8fbb6a56845b7a4
+        repo: openstack/networking-ovn
+    version: 4.0.3
 repository-settings:
   openstack/networking-ovn: {}
 branches: