#10141 docs: update ClickHouse store documentation Pull request opened by ekalra-meltano Description Checklist • I have read the contribution guide Was generative AI tooling used to co-author this PR? • Yes (please specify the tool below) Related Issues • Closes #XXXX Summary by Sourcery Add ClickHouse as a documented, fully supported Meltano Cloud data store option, including connection, security, and full-store setup guidance. Documentation: • Introduce a comprehensive ClickHouse Store guide covering IP whitelisting, authentication, configuration, performance notes, and full data store setup. • Link the new ClickHouse Store documentation from the Meltano Cloud connect-a-store index and sidebar navigation. meltano/meltano