fix: optimizer common_sub_expression_eliminate fails in a window function (apache#17852)

* fix: prevent modifying output schema in `scalar_subquery_to_join`

* docs: explain why we need a projection after transforming to a join

* test: window function fails if its child subquery is rewritten to join

* fix: disable `skip_failed_rules` rule for _query has type error_ test

Author: dqkqd