Appoint Dale as Adjutant PTL

Dale raised the late candidacy for Adjutant PTL
2023.1 cycle.
- https://review.opendev.org/c/openstack/election/+/857258
- https://etherpad.opendev.org/p/2023.1-leaderless

As we are using the release number, updating the project
list schema for appointment field.

Change-Id: I2e821e0c2b574efbf392feef66af1df699be74df

openstack_governance/projects_schema.yaml

@@ -60,7 +60,7 @@ additionalProperties:
     appointed:
       type: "array"
       items:
-        type: "string"
+        type: ["string", "number"]
     irc-channel:
       type: "string"
     service:

reference/projects.yaml

@@ -1,12 +1,13 @@
 adjutant:
   ptl:
-    name: APPOINTMENT NEEDED
+    name: Dale Smith
-    irc: No nick supplied
+    irc: dalees
-    email: example@example.org
+    email: dale@catalystcloud.nz
   appointed:
     - victoria
     - yoga
     - zed
+    - 2023.1
   irc-channel: openstack-adjutant
   service: Operations Processes automation
   mission: >