Release oslo.config for wallaby-1 milestone

This is a library release for oslo.config for the wallaby-1
milestone. This repo includes commits that have not been releases for
this cycle yet.

If the team is ready to process with this release, please leave a +1
to indicate we should go ahead with the release.

If the team needs more time for things about to merge, or if there is
some other reason a release should not be done at this time, please
leave a -1 with a comment indicating the status. Then update the patch
with the new commit hash to use once the team is ready to do the
release.

Change-Id: I5abd27c55a1f6f83cb0f9a83a4b7169449fb2707

deliverables/wallaby/oslo.config.yaml

@@ -6,3 +6,8 @@ team: oslo
 type: library
 repository-settings:
   openstack/oslo.config: {}
+releases:
+  - version: 8.4.0
+    projects:
+      - repo: openstack/oslo.config
+        hash: efa46b5f441ed377a777f33b66aa4070ae133c9f