Check available features in Windows wheels

[nulano]

Add test for #6701 and similar issues in earlier releases.
See successful run in my fork: https://github.com/nulano/Pillow/actions/runs/3815551828
See failed run detecting the #6701 issue for 9.3.0 release: https://github.com/nulano/Pillow/actions/runs/3815551828

This runs the tests and checks available features in a Windows Server Core Docker container similarly to how run_tests is run in the pillow-wheels repo. when building Linux/macOS wheels.

Marked as draft because:

• PyPy tests work on my system, but there is no output on GHA except for an error. Fixed.
• I'm not sure when this should be triggered. Running all tests twice for every push seems unnecessary (and takes extra 2min), but at least release wheels should be tested. I think the ideal option might be to run only when pushing a tag, but I think that might not get detected if there is a simultaneous push of the same commit to a branch.

[radarhere]

@nulano you may wish to consider this again as part of #7390 (comment)

[nulano]

Yes, I was planning to rebase this after writing that PR.

[nulano]

Closing in favor of #7580.