fix: Prevent skipping blocks from Redis Stream

[morgsmccauley]

xread returns messages after the provided ID, there's no need to increment the ID ourselves. If we increment to an ID that actually exists within the stream, the message will be skipped permanently. e.g. we have messages 1-0 and 1-1, on first read we get 1-0, we increment to 1-1, then on the second read we get nothing.