Many implementation fails to build on Windows

For these implementations:

- ccl-bin
- clisp-head
- ecl
- abcl-bin
- clasp-bin
- cmu-bin

attempt to update quicklisp dists tells something like that:

```
Run # The parent workflow might have caching enabled for Roswell and all
# The parent workflow might have caching enabled for Roswell and all
# the other Lisp files in general, so it's better to tell Quicklisp
# to update all its dists.
ros -e "(ql:update-all-dists :prompt nil)"
shell: D:\a\_temp\setup-msys2\lispsh.CMD -eo pipefail {0}
env:
LISP: ccl-bin
MSYSTEM: MINGW64
MSYSCON: Stop-Roswell-From-Installing-Msys2
ccl-bin/system does not exist.stop.
```

The issue shows a failure when updating Quicklisp dists on Windows for several Lisp implementations. Start by examining the GitHub Action workflow files in the repository, particularly the setup-msys2 script and the environment variables. Look at how each Lisp implementation is installed and configured on Windows. Check the error 'ccl-bin/system does not exist' to understand the path resolution. Running the action locally in a Windows environment or using CI logs will help reproduce the issue.

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