EEM Gateway should correctly handle the group id of the consumer and it as label value to the consumer metrics retrieved by OpenTelemetry

We have installed the OpenTelemetry collector to recieve OTel metrics from event gateway and event manager pod. The OTel metric publication from EGW/EEM works as expected and we're able to see the metric exported by OTel collector. We're using debug exporter and prometheus exporter. Now for the issue, the metric consumers_msgs or consumers_bytes does not properly show Group ID.

Installed version of Event Endpoint Management operator is 11.6.2.
Installed version of Event Streams operator: 12.0.2

Example of the metric printed by debug exporter, connection created by Java client:
consumers_msgs{clientId=clientIdJakub,connectionId=69a6a140-443e-4fb5-b06a-20f03e1adbe7,gateway=vedoc-dev1/vedoc-dev1/event-gw-dev1-ibm-egw-gateway-5bc95b9b77-wfvxg,group=NoGroup,org=eem,subscription=xxx,subscriptionId=xxx,version=11.6.2} 1551

For the testing purposes i have also tried to use kcat to read the topic, i have specified group ID but the metric does not show that

used command:
kcat -G vedoc-dev1 vehicle.updates.complete.v1 

connection details:
security.protocol=SASL_SSL
sasl.mechanism=PLAIN

other properties: sasl.username, sasl.password, ssl.ca.location

Metric from kcat connnection:
consumers_msgs{clientId=rdkafka,connectionId=3f1f45d7-f188-47e1-b53b-973dcaa3ed8e,gateway=vedoc-dev1/vedoc-dev1/event-gw-dev1-ibm-egw-gateway-5bc95b9b77-29hp4,group=NoGroup,org=eem,subscription=xxx,subscriptionId=xxxversion=11.6.2} 0

we assume the group ID is not properly assigned to the metric in the EGW pod. We expect that EGW adds the group id to the consumer metrics as label value.