Review access change

Remove direct push for mdb/cos-infra-git-admins and mdb/cos-infra-prod. Instead, allow Gerrit API.

BUG=b/410627164

Change-Id: I5b5cdf893e2d0aeb1aab1107ab59b3f919ff83d8
Reviewed-on: https://cos-review.googlesource.com/c/All-Projects/+/102301
Tested-by: Miri Amarilio <mirilio@google.com>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>