Appoint Fossen Qiu as Sahara PTL

Fossen Qiu raised late candidacy to server
as Sahara PTL position for Yoga Cycle
- https://review.opendev.org/c/openstack/election/+/806339
- https://etherpad.opendev.org/p/yoga-leaderless

Change-Id: I4aa3b9e21f4b06e7f8cc5874cc0acff38784a539

reference/projects.yaml

@@ -2719,9 +2719,11 @@ requirements:
       - yoctozepto
 sahara:
   ptl:
-    name: APPOINTMENT NEEDED
+    name: Fossen Qiu
     irc: No nick supplied
-    email: example@example.org
+    email: qiujunting@inspur.com
+  appointed:
+    - yoga
   irc-channel: openstack-sahara
   service: Data Processing service
   mission: >