Improve print in case if consumer is not initialized

[hubcio]

No description provided.

[spetz]

Maybe also add the comments on both build() methods for IggyConsumer and IggyProducer that the init() should be invoked?

/// Builds the consumer. Invoke the `init()` method before consuming the messages.

/// Builds the producer. Invoke the `init()` method before producing the messages.

Also, update the SDK version :)

[coveralls]

Pull Request Test Coverage Report for Build 12432685816

Details

• 0 of 1 (0.0%) changed or added relevant line in 1 file are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.004%) to 75.293%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
sdk/src/clients/consumer.rs	0	1	0.0%

Files with Coverage Reduction	New Missed Lines	%
server/src/streaming/systems/personal_access_tokens.rs	1	85.45%

Totals
Change from base Build 12329818473:	-0.004%
Covered Lines:	23231
Relevant Lines:	30854

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💛 - Coveralls