change sql script position so that it is run first (#203)

### TL;DR

Renamed SQL file to include a numeric prefix for proper ordering.

### What changed?

Renamed `clickhouse_create_insert_null_table.sql` to `1_clickhouse_create_insert_null_table.sql` in the internal/tools directory. The file content remains unchanged.

### How to test?

1. Verify that the file has been renamed correctly in the repository
2. Ensure any scripts or processes that reference this file are updated to use the new filename
3. Confirm that the file content is identical to the original

### Why make this change?

Adding a numeric prefix (`1_`) to the filename establishes a clear execution order for SQL scripts. This naming convention helps maintain proper sequencing when multiple SQL scripts need to be run in a specific order.

Author: iuwqyir