[Improve][Sort] KafkaExtractNode support more StartupMode

[huyuanfeng2018]

Description

Written variously: I think KafkaExtractNode should support more KafkaScanStartupMode. Currently, only two types of KafkaExtractNode are supported, including EARLIEST_OFFSET and LATEST_OFFSET, But in many cases topicPartitionOffset is specified, and this parameter is already reserved in KafkaSource,I'd like to contribute this code if I can

InLong Component

InLong Sort

Are you willing to submit PR?

• Yes, I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[github-actions]

Thanks a lot for opening your first issue with us! 🧡 We'll get back to you shortly! ⏳

[EMsnap]

Yeah sure, thanks for participation, note that now SPECIFIC_OFFSETS is currently support by KafkaDynamicTableFactory. Please be aware of that the specificStartupOffsets should also be passed to the factory when doing so

[huyuanfeng2018]

I want to do this @dockerzhang

Yeah sure, thanks for participation, note that now SPECIFIC_OFFSETS is currently support by KafkaDynamicTableFactory. Please be aware of that the specificStartupOffsets should also be passed to the factory when doing so

Ok, I'll take care of that