ocsp-updater: improve tick and staleness buckets (#5640)
ocsp-updater: improve tick and staleness buckets (#5640)

Add additional staleness buckets going from 24 hours
to 48 hours stale, so we can know how far beyond the
BRs we are.

Customize the tick buckets so that it doesn't top out at
reporting 10 seconds per tick (the default when no
buckets are provided).
jcjones/boulder,jcjones/boulder,letsencrypt/boulder,jsha/boulder,jsha/boulder,jsha/boulder,letsencrypt/boulder,jcjones/boulder,jcjones/boulder,letsencrypt/boulder