Two small improvements that I missed in #38257:

• Added wait() method, to be able to do logic like this:

  while (!($limit = $limiter->consume())->isAccepted()) {
      $limit->wait();
  }

• Fixed the CompoundLimiter to always call all limiters (even when one already blocks). This was the original behavior of the compound limiter and imho the best behavior (at least, it's always consistent and doesn't rely on the order of limiters - which is unsorted).