fix(sink): change debezium json bytea type encoder

[xuefengze]

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What's changed and what's your intention?

resolve #13327

Checklist

• I have written necessary rustdoc comments
• I have added necessary unit tests and integration tests
• I have added fuzzing tests or opened an issue to track them. (Optional, recommended for new SQL features Sqlsmith: Sql feature generation #7934).
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[xiangjinwu]

• The check > cargo audit failure has been fixed in main, just rebase/merge main
• I am not familiar with the end-to-end test (parallel) > e2e_test/visibility_mode/barrier.slt failure
• Update tests on bytea as in fix: wrong ts_ms field in debezium json #13391?

[xuefengze]

* Update tests on `bytea` as in [fix: wrong ts_ms field in debezium json #13391](https://github.com/risingwavelabs/risingwave/pull/13391)?

There were no tests on bytea in e2e_test/sink/kafka originally, I have added relevant tests.