Appoint Martin as Monasca PTL

Martin raised late candidacy for Monasca
Zed cycle PTL
- https://review.opendev.org/c/openstack/election/+/830129
- https://etherpad.opendev.org/p/zed-leaderless

Change-Id: I861e276ca7a043fdee70762590120b706e737b9c

reference/projects.yaml

@@ -921,12 +921,13 @@ mistral:
         email: renat.akhmerov@gmail.com
 monasca:
   ptl:
-    name: APPOINTMENT NEEDED
-    irc: No nick supplied
-    email: example@example.org
+    name: Martin Chacon Piza
+    irc: chaconpiza
+    email: martin@chaconpiza.com
   appointed:
     - xena
     - yoga
+    - zed
   irc-channel: openstack-monasca
   service: Monitoring
   mission: >