This changeset adds a predicate to the wait strategy to make sure
that it not only returns a 200, but also that every enabled service
is actually already exposed in the config. Since we are polling
the server during bootstrap here, not all of them might show up
at the same time.

Also, while not contributing to the fix we poll the terse bucket
http config "b" instead of the verbose one "buckets" since it is
a little more efficient on the server side and actually the config
the client internally works with.

fixes testcontainers#2993