Bump cygwin/cygwin-install-action from 3 to 4
Bumps [cygwin/cygwin-install-action](https://github.com/cygwin/cygwin-install-action) from 3 to 4.
- [Release notes](https://github.com/cygwin/cygwin-install-action/releases)
- [Commits](https://github.com/cygwin/cygwin-install-action/compare/
f5e0f048310c425e84bc789f493a828c6dc80a25...
006ad0b0946ca6d0a3ea2d4437677fa767392401)
---
updated-dependencies:
- dependency-name: cygwin/cygwin-install-action
dependency-type: direct:production
update-type: version-update:semver-major
...
Signed-off-by: dependabot[bot] <support@github.com>