feat: add support for multiple sql statements in single request

[forest]

See:

• https://docs.snowflake.com/en/developer-guide/sql-api/submitting-multiple-statements
• https://docs.snowflake.com/en/developer-guide/sql-api/using-transactions

[hgdeploy]

:tada: This PR is included in version 0.12.0 :tada:

The release is available on GitHub release

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