Fix wrong awaitility usages

All calls to awaitility should end with a call to until method or equivalent otherwise nothing happens.

We have some usage like the one below:

await().atLeast(Duration.FIVE_SECONDS);

We should replace them by:

await().pollDelay(Duration.FIVE_SECONDS).until(() -> isReady());

When the isReady method is not possible (for instance: wait a bit to leave some fresh air to the DB), the following lambda could be used, but note that it is conceptually incorrect:

await().pollDelay(Duration.FIVE_SECONDS).until(() -> true);