Appoint Spyros as Magnum PTL

Spyros raised the late candidacy for Magnum
Zed cycle PTL
- https://review.opendev.org/c/openstack/election/+/829537
- https://etherpad.opendev.org/p/zed-leaderless

Change-Id: Ic57bb224234a7965fd2c2011f9808ed41f6808ff

reference/projects.yaml

@@ -759,9 +759,11 @@ kuryr:
     tc_members: [yoctozepto, mnaser]
 magnum:
   ptl:
-    name: APPOINTMENT NEEDED
-    irc: No nick supplied
-    email: example@example.org
+    name: Spyros Trigazis
+    irc: strigazi
+    email: strigazi@gmail.com
+  appointed:
+    - zed
   irc-channel: openstack-containers
   service: Container Infrastructure Management service
   mission: >