Add static config check to Kafka

[nepridumalnik]

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In version 2.4, the names of the fields have changed, which was not detected due to the lack of verification of the static config, so I suggest adding this check.

2.3: https://github.com/userver-framework/userver/blob/v2.3/kafka/src/kafka/impl/configuration.cpp#L51 2.4: https://github.com/userver-framework/userver/blob/v2.4/kafka/src/kafka/impl/configuration.cpp#L168