Automatically output files for DuckDB

[AcevedoR]

Feature description

• following to Find a way to not require {{ workingDir }} within a DuckDB query when input files are provided #267

COPY TO '{{ outputFiles.result }}' — if you have any files generated within the query that weren’t in the wdir before the task run, we can automatically output them without requiring to specify any outputFiles objects. This syntax will still work if specified, but it's no longer required. we can deprecate the outputFiles property because it will now be done by default (TBD if possible)