feat: new configuration parameters for input: kafka_franz

[darkxeno]

This PR enables the following configuration parameters to be used for the input kafka_franz:

session_timeout: "Sets how long a member in the group can go between heartbeats. If a member does not heartbeat in this timeout, the broker will remove the member from the group and initiate a rebalance."
defaults to 45 secs

heartbeat_period "Sets how long a group member goes between heartbeats to Kafka. Kafka uses heartbeats to ensure that a group member's session stays active. This value can be any value lower than the session timeout, but should be no higher than 1/3rd the session timeout."
defaults to 3 secs

rebalance_timeout "Sets how long group members are allowed to take when a rebalance has begun. This timeout is how long all members are allowed to complete work and commit offsets, minus the time it took to detect the rebalance (from a heartbeat)."
defaults to 60 secs

Default values are based on frank-go defaults:
https://github.com/twmb/franz-go/blob/b77dd13e2bfaee7f5181df27b40ee4a4f6a73b09/pkg/kgo/config.go#L1448
https://github.com/twmb/franz-go/blob/b77dd13e2bfaee7f5181df27b40ee4a4f6a73b09/pkg/kgo/config.go#L1467
https://github.com/twmb/franz-go/blob/b77dd13e2bfaee7f5181df27b40ee4a4f6a73b09/pkg/kgo/config.go#L1481

Supporting these parameters helps to support workloads where processing 1 single message might take longer than 1 or 2 minutes, as longer session timeouts with longer heartbeat intervals helps to avoid or reduce rebalances.

[CLAassistant]

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