[batch] run ci jobs only in us-central1 (#8242)
[batch] run ci jobs only in us-central1 (#8242)

* [batch] run ci jobs only in us-central1

* bump

hail-is/hail,danking/hail,hail-is/hail,hail-is/hail,danking/hail,cseed/hail,danking/hail,danking/hail,cseed/hail,danking/hail,cseed/hail,cseed/hail,danking/hail,hail-is/hail,hail-is/hail,cseed/hail,cseed/hail,hail-is/hail,danking/hail,hail-is/hail,cseed/hail,hail-is/hail,cseed/hail,danking/hail