fda query should be able to execute multiple statements

[gz]

          Database CLIs usually allow executing a SQL script with many statements.

I guess this can be used to achieve the same effect by executing commands one by one. We may want to support that directly in the future.

Originally posted by @ryzhyk in https://github.com/feldera/feldera/pull/2486#pullrequestreview-2305442096

[ryzhyk]

What happens when a statement fails? We can probably make this configurable, but terminating the script is probably a good default.

[gz]

yes, I'll check what e.g., psql does