Bump cygwin/cygwin-install-action from 6.0 to 6.1

Bumps [cygwin/cygwin-install-action](https://github.com/cygwin/cygwin-install-action) from 6.0 to 6.1.
- [Release notes](https://github.com/cygwin/cygwin-install-action/releases)
- [Commits](https://github.com/cygwin/cygwin-install-action/compare/f2009323764960f80959895c7bc3bb30210afe4d...711d29f3da23c9f4a1798e369a6f01198c13b11a)

---
updated-dependencies:
- dependency-name: cygwin/cygwin-install-action
  dependency-version: '6.1'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/dev-short-tests.yml

@@ -544,7 +544,7 @@ jobs:
     steps:
     - run: git config --global core.autocrlf input
     - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # tag=v6.0.2
-    - uses: cygwin/cygwin-install-action@f2009323764960f80959895c7bc3bb30210afe4d # tag=v6
+    - uses: cygwin/cygwin-install-action@711d29f3da23c9f4a1798e369a6f01198c13b11a # tag=v6
       with:
         platform: x86_64
         packages: >-