Provide hints when trusted publishing fails

[konstin]

When trusted publishing on github actions was requested but fails, it's usually due to some mismatch between pypi's configuration and the actual job, e.g., a missing .yml extension. It's cumbersome to debug since pypi will not tell you what mismatched for security, and you can only use trusted publishing in github actions, so each debugging round is starting a new publish job. To help with trusted publishing errors, we should provide a printout with debug information that the user can easily diff against the fields they entered in the pypi web interface and their github actions job configuration.