kafka-connector:If wrong data is sent to Kafka, the connector process will crash

**Bug Description**
+ version:v0.6.0
If the wrong data is sent to Kafka, the data cannot be synchronized later. You need to delete topic and restart Kafka connect.

**Expected Behavior**
The error data will prompt the error information in the log, and the subsequent data can be synchronized normally

**Steps to Reproduce**

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Look at the Kafka connector code in the OpenMLDB repository, likely under connectors or streaming modules. Examine error handling around data ingestion and deserialization. The fix involves making the connector resilient to malformed data, logging errors, and continuing to process subsequent messages. Testing requires setting up a Kafka instance and sending both correct and incorrect data to verify the connector does not crash.

索引モデルが issue の本文から書いたものです。