[fix][io][branch-2.10] Not restart instance when kafka source poll exception. #20816
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Motivation
When Kafka source poll message exception, it will throw it to the function framework, and not trigger the restart function instance.
#20795 uses a new method on PulsarSource #20791 to fix it on master branch. To maintain compatibility, we can't cherry-pick it to the historical version, so the class is implemented in the Kafka source connector.
Modifications
KafkaPushSource
on Kafka source connector.notifyError
to report the exception to the io connector framework.Documentation
doc
doc-required
doc-not-needed
doc-complete
Matching PR in forked repository