[Fix][Connector-V2] Fix oceanbase mysql jdbc sink create statement error

[Hisoka-X]

Purpose of this pull request

Fix oceanbase mysql jdbc sink create statement error.
refer https://ask.oceanbase.com/t/topic/35602897.

Does this PR introduce any user-facing change?

no

How was this patch tested?

exist

Check list

• If any new Jar binary package adding in your PR, please add License Notice according
  New License Guide
• If necessary, please update the documentation to describe the new feature. https://github.com/apache/seatunnel/tree/dev/docs
• If you are contributing the connector code, please check that the following files are updated:
  1. Update plugin-mapping.properties and add new connector information in it
  2. Update the pom file of seatunnel-dist
  3. Add ci label in label-scope-conf
  4. Add e2e testcase in seatunnel-e2e
  5. Update connector plugin_config
• Update the release-note.

[Copilot]

Pull Request Overview

This PR fixes the oceanbase mysql jdbc sink create statement error by adding the missing JDBC parameter.

• Added "allowMultiQueries" parameter set to "true" to support multi-statement queries in the OceanBase MySQL dialect.

[Copilot]

[nitpick] Consider adding a comment explaining why the "allowMultiQueries" parameter is necessary for clarity and future maintainability.

Suggested change

	map.put("rewriteBatchedStatements", "true");
	map.put("rewriteBatchedStatements", "true");
	// Enable multiple SQL queries in a single statement. This is required for certain
	// OceanBase MySQL operations that rely on executing multiple queries together.
	// Note: Use with caution as it may increase the risk of SQL injection if inputs are not sanitized.