periodic-ci-operator-yaml-creator: Use bot that has perms to create l…

…abels

The openshift-bot doesn't have enough permissions everywhere to self-approve
PRs, so use the openshift-ci-robot instead.

ci-operator/jobs/infra-periodics.yaml

@@ -710,7 +710,7 @@ periodics:
     volumes:
     - name: token
       secret:
-        secretName: github-credentials-openshift-bot
+        secretName: github-credentials-openshift-ci-robot
 - agent: kubernetes
   cluster: app.ci
   cron: 30 7 * * 1