Switch requirements to distributed leadership

The purpose of this change is to make it explicit that "team leadership"
for the requirements team is equally shared between the 2 named
individuals.  While this is more of a co-PTL model we're leveraging the
distibuted team leadership model adopted by the TC resolution[1]

[1] https://governance.openstack.org/tc/resolutions/20200803-distributed-project-leadership.html

Change-Id: Ib6c4c4f4a45f42e4daaa910cd728f946e72ff75c

reference/projects.yaml

@@ -2410,10 +2410,7 @@ Release Management:
       repos:
         - openstack/specs-cookiecutter
 requirements:
-  ptl:
-    name: Matthew Thode
-    irc: prometheanfire
-    email: mthode@mthode.org
+  leadership_type: distributed
   irc-channel: openstack-requirements
   service: Common dependency management
   mission: >
@@ -2425,6 +2422,28 @@ requirements:
     requirements:
       repos:
         - openstack/requirements
+  liaisons:
+    release:
+      - name: Matthew Thode
+        irc: prometheanfire
+        email: mthode@mthode.org
+      - name: Tony Breeds
+        irc: tonyb
+        email: tony@bakeyournoodle.com
+    tact-sig:
+      - name: Matthew Thode
+        irc: prometheanfire
+        email: mthode@mthode.org
+      - name: Tony Breeds
+        irc: tonyb
+        email: tony@bakeyournoodle.com
+    security:
+      - name: Matthew Thode
+        irc: prometheanfire
+        email: mthode@mthode.org
+      - name: Tony Breeds
+        irc: tonyb
+        email: tony@bakeyournoodle.com
 sahara:
   ptl:
     name: Fossen Qiu