Add automatic release job triggered by tag

Currently put it in pre-release pipeline to test that it's ok.

Change-Id: I791478464ed59933273bb0e5f88f3636074c6729

.zuul.yaml

@@ -336,6 +336,29 @@
     vars:
       branch_override: stable/train
 
+- job:
+    name: ansible-collections-openstack-release
+    parent: base
+    run: ci/publish/publish_collection.yml
+    secrets:
+      - ansible_galaxy_info
+
+- secret:
+    name: ansible_galaxy_info
+    data:
+      url: https://galaxy.ansible.com
+      token: !encrypted/pkcs1-oaep
+        - lZFzfoCbuwqV1k6qRfl/VS7E+knUW7+zpg7BptrenK4n0g7UY0HtdVkYq0pV0Tj/LbhzG
+          jHD0mehcV1iS6B7ORKg4criJkdDfEx09BD8z8yv0EleiIMmhlrCoMcY593OZMBtVbGi0D
+          CwQtNO98QIsfZogChfLfvRNiBmUV98mEb/p6p3EtGx8J7qcAsqfWxc/CzB8GCleLAHHHT
+          FuikMM03ZnV0ew7E+TPkHbzzPhBZOqS5HYF0HtgttHwIXdfIWp/XdTuEEk7uRRgYZ2Iao
+          ifWRzoKaOQmhM++e1ydCqw9D4y9dZEFNMQLwSqcrvtb8cNwT1kl7SCFqYNE2lbutj4ne6
+          PTBQRsKegMB4Y3ena14fNF6tCynvJLPhF/cjPH2Jhs+B19XQhWkL3TgiOY02W24YHwRcP
+          +LdkM8inAvyVi3DEbEqdjBPO9OFJcBOKPlCdkGvuwdNCuEpEwctWs0gV3voflG2CDKzmJ
+          wu9JJOAWnq/0l1WpuDqWreKeQ/BUGZC2Gb4xRAqofulgvhs4WuYoEccjH4EJFIZ90S1EP
+          R/ZLadqZaEhmjwGM5sMWbBbjT23XsRgg0Tzt9m8DENYMuYDqkMdRbt2jYZa+32p4hyxVe
+          Y6H/pqYq5b9uOzumnShaK4WlmkQyXcNPkoSlMC1h4OGvqX/WUixpI38jyMA5Tc=
+
 - project:
     check:
       jobs:
@@ -429,3 +452,7 @@
         - ansible-collections-openstack-functional-devstack-stein-ansible-2.11
         - ansible-collections-openstack-functional-devstack-rocky-ansible-2.11
         - ansible-collections-openstack-functional-devstack-queens-ansible-devel
+
+    pre-release:
+      jobs:
+        - ansible-collections-openstack-release