The current opendev-infra-prod-base job sets up the executor to log
into bridge AND copies in Zuul's checkout of system-config to
/home/zuul/src.
This presents an issue for parallel operation, as every production job
is cloning system-config ontop of each other.
Since they all operate in the same buildset, we only need to clone
system-config from Zuul once, and then all jobs can share that repo.
This adds a new job "infra-prod-setup-src" which does this. It is a
dependency of the base job so should run first.
All other jobs now inhert from opendev-infra-prod-setup-keys, which
only sets up the executor for logging into bridge.
Change-Id: I19db98fcec5715c33b62c9c9ba5234fd55700fd8
Depends-On: https://review.opendev.org/c/opendev/base-jobs/+/807807
9cccb02bb0