Update cloud ClickHouse instance environment variables to use production secrets

[Copilot]

Updates CI workflows to use production cloud environment secrets with _PROD suffix.

Changes

• Windows.yml: Updated secret references in database creation, DSN configuration, and cleanup steps
• macOS.yml: Updated secret references in database creation, DSN configuration, and cleanup steps
• Linux.yml: Updated secret references in version check, database creation, DSN configuration, and cleanup steps

Updated Secrets

- INTEGRATIONS_TEAM_TESTS_CLOUD_HOST_SMT
+ INTEGRATIONS_TEAM_TESTS_CLOUD_HOST_SMT_PROD

- INTEGRATIONS_TEAM_TESTS_CLOUD_PASSWORD_SMT
+ INTEGRATIONS_TEAM_TESTS_CLOUD_PASSWORD_SMT_PROD

All references across the three workflow files have been migrated to the production environment secrets.

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