fix consumer group bug

[diego-escobedo]

Resolves LOT-643, resolves LOT-693

[linear]

LOT-643 Bug - Event Guidance broken on self host sometimes

[linear]

LOT-693 Bug - Event Ingestion/Guidance with Go Broken

### Summary

Bug encountered when fully switching over to Porter, which means we were fully using go ingestion in production. This also occurs locally for me (although not sure if everyone has this problem locally, no way to verify this).

The ingestion is able to send the message to the kafka topic, however the guidance does not read the message and doesn't even print anything after

2023/03/22 18:31:54 Before polling for messages...

So messages are stuck right now in Kafka it seems.

I believe that there is no key on the message and that now since we don't have cust_Id that could be an issue as well.

### Steps to reproduce

Try to send an event to the /api/track/ either locally or on the cloud and see if it pops up on the events preview page in metrics.

Here is the event I am sending {

"batch": \[

    {

        "customer_id": "cust_ddfae050b12c4c3a9e092917299296c4",

        "event_name": "mainnet_transaction",

        "idempotency_id": "123456",

        "properties": {

            "shard_id": "2",

            "shard_type": "professional",

            "change": 5

        },

        "time_created": "2023-03-22T19:53:25.665Z"

    }

\]

}