Fix win release ext (#8191)

* Fix cabal exec extension for win

* Use tabs in the changed region

* Use exe ext when zipping

* Apply suggestions from code review

Co-authored-by: Robert <rob@vllmrt.net>

* Add curly braces to var

Co-authored-by: Robert <rob@vllmrt.net>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
(cherry picked from commit 49a49462)