More CI fixes

[rbberger]

PR Summary

The currrent default configuration would pull in intel-oneapi-mkl as MKL provider, which causes troubles with numpy.

PR Checklist

• [ ] Code is formatted. (You can use the format_spiner make target.)
• [ ] Adds a test for any bugs fixed. Adds tests for new features.
• [ ] If preparing for a new release, update the version in cmake.