[Feature] [cdc] Support merge_shards in kafka/pulsar database synchronization

[MOBIN-F]

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• [X] I searched in the issues and found nothing similar.

Motivation

binlog data in the same topic may contain data with the same table name in different database. Provide the merge_shards parameter like Mysql-cdc to avoid table name conflicts.

Solution

No response

Anything else?

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Are you willing to submit a PR?

• [X] I'm willing to submit a PR!