message: project now inherits external dependencies from original relation
diff: @@ -199,7 +199,9 @@ unique_ptr<DuckDBPyRelation> DuckDBPyRelation::FromArrow(py::object &arrow_objec
  }
  unique_ptr<DuckDBPyRelation> DuckDBPyRelation::Project(const string &expr) {
  - return make_unique<DuckDBPyRelation>(rel->Project(expr));
  + auto projected_relation = make_unique<DuckDBPyRelation>(rel->Project(expr));
  + projected_relation->rel->extra_dependencies = this->rel->extra_dependencies;
  + return move(projected_relation);
  }
  unique_ptr<DuckDBPyRelation> DuckDBPyRelation::ProjectDf(const py::object &df, const string &expr,
  