Skip grenade job on doc updates

Import a few more irrelevant files from base grenade job definition
to avoid triggering grenade jobs on non-functional update.

Change-Id: I6955d9c9ea7be11932c6f1ff9ce6e931b91e1399

.zuul.yaml

@@ -71,6 +71,10 @@
     required-projects:
       - openstack/oslo.messaging
     irrelevant-files:
+      - ^.*\.rst$
+      - ^doc/.*$
+      - ^releasenotes/.*$
+      - ^.git.*$
       - ^(test-|)requirements.txt$
       - ^setup.cfg$
       - ^\.pre-commit-config\.yaml$
@@ -82,6 +86,10 @@
     required-projects:
       - openstack/oslo.messaging
     irrelevant-files:
+      - ^.*\.rst$
+      - ^doc/.*$
+      - ^releasenotes/.*$
+      - ^.git.*$
       - ^(test-|)requirements.txt$
       - ^setup.cfg$
       - ^\.pre-commit-config\.yaml$