[CI] setting backup&replication voting to false

There are many cases where these jobs fail due to swift errors.
We don't want to always recheck these jobs.

This commit set backup and replication jobs' voting to false.

Change-Id: I202af622df280df435bb237396627a715dd5d299

zuul.d/projects.yaml

@@ -12,14 +12,20 @@
     check:
       jobs:
         - trove-tempest-ubuntu-base-mysql5.7
-        - trove-tempest-ubuntu-backup-mysql5.7
-        - trove-tempest-ubuntu-replication-mysql5.7
+        - trove-tempest-ubuntu-backup-mysql5.7:
+            voting: false
+        - trove-tempest-ubuntu-replication-mysql5.7:
+            voting: false
         - trove-tempest-ubuntu-base-mariadb10.4
-        - trove-tempest-ubuntu-backup-mariadb10.4
-        - trove-tempest-ubuntu-replication-mariadb10.4
+        - trove-tempest-ubuntu-backup-mariadb10.4:
+            voting: false
+        - trove-tempest-ubuntu-replication-mariadb10.4:
+            voting: false
         - trove-tempest-ubuntu-base-postgresql12
-        - trove-tempest-ubuntu-backup-postgresql12
-        - trove-tempest-ubuntu-replication-postgresql12
+        - trove-tempest-ubuntu-backup-postgresql12:
+            voting: false
+        - trove-tempest-ubuntu-replication-postgresql12:
+            voting: false
         - openstack-tox-cover:
             voting: true
         - trove-tox-bandit-baseline: