Sometimes offset listeners would not be notified when registered with a replica

[kjnilsson]

Describe the bug

if an offset listener was registered with a higher offset before all lower offset had been notified the lower offsets may not be notified even if their offset is available to read.

for example:

1. empty stream
2. register an offset listener for offset 0 against a replica
3. register an offset listener for offset 1
4. write a single entry and wait for applied notification
5. no osiris_offset message is received even though offset 0 is now committed.

In terms of RabbitMQ impact this means sometimes some consumer of a stream replica may experience a delay receiving messages.