[manila] Release 17.3.1 from stable/2023.2

Doing this in preparation of the final
antelope release with a missing bugfix
from releases on this stable branch

% git log --oneline --no-merges 17.3.0..
3542e4852 NetApp: don't check kerberos config on mgmt LIF.

Change-Id: I4e161972175775437c3beb8f987347ac5d61bfb9

deliverables/bobcat/manila.yaml

@@ -62,6 +62,10 @@ releases:
     projects:
       - repo: openstack/manila
         hash: 0d313c0875d9d4326c8b3c951bc23d492ad67eb7
+  - version: 17.3.1
+    projects:
+      - repo: openstack/manila
+        hash: 3542e485295b789b025fc2ece5683b285b11f2b2
 branches:
   - name: stable/2023.2
     location: 17.0.0.0rc1