Fix : aggregate method typing to accept list of expressions#246

evertlammerts merged 2 commits intoduckdb:mainduckdb/duckdb-python:mainfrom

Narwhal-fish:fix-DuckDBPyRelation.aggregate-incorrect-typingNarwhal-fish/duckdb-python:fix-DuckDBPyRelation.aggregate-incorrect-typingCopy head branch name to clipboard