Add openstack-skyline irc channel in access an gerrit bot

openstack/skyline project is newly added
- https://review.opendev.org/c/openstack/governance/+/814037

and channel is also registered now #openstack-skyline.

Change-Id: If92fd7cb10c55164807ef5cc8dedc83699d3b149

accessbot/channels.yaml

@@ -231,6 +231,7 @@ channels:
   - name: openstack-sdks
   - name: openstack-security
   - name: openstack-service-broker
+  - name: openstack-skyline
   - name: openstack-snaps
   - name: openstack-solar
   - name: openstack-spaceport

gerritbot/channels.yaml

@@ -1229,6 +1229,17 @@ openstack-service-broker:
   branches:
     - master
 
+openstack-skyline:
+  events:
+    - patchset-created
+    - change-merged
+  projects:
+    - openstack/skyline-apiserver
+    - openstack/skyline-console
+  branches:
+    - master
+    - ^stable/.*
+
 openstack-snaps:
   events:
     - patchset-created