Ansible launcher: update registration between jobs
Ansible launcher: update registration between jobs

On a long-running worker, reconfiguration update events received
during job runs would be ignored.  On busy workers, that could mean
we go quite some time without updating our job registration.

Instead, set a flag if we ignore a reconfiguration event, and then,
before we go to collect our next job, check it and re-register if
need be.

Change-Id: Ib4af4944c0f0f73d07e54c729c9d9f010552cfdd

wikimedia/integration-zuul,gooddata/zuul,gooddata/zuul,gooddata/zuul,wikimedia/integration-zuul,wikimedia/integration-zuul,wikimedia/integration-zuul,gooddata/zuul,gooddata/zuul