Update consumer_rolling_upgrade_test.py to support KIP-848’s group protocol config

This task is to update the test method(s) in consumer_rolling_upgrade_test.py to support the group.protocol configuration introduced in KIP-848 by adding an optional group_protocol argument to the tests and matrixes.

See KAFKA-16231 as an example of how the test parameters can be changed.

The tricky wrinkle here is that the existing test relies on client-side assignment strategies that aren't applicable with the new KIP-848-enabled consumer.