Update supported python versions

[jlaehne]

Progress of the PR

• [x] Change implemented (can be split into several points),
• [x] ready for review.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (0d69777) 100.00% compared to head (11c5421) 100.00%.

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #202 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 12 12 Lines 554 556 +2 ========================================= + Hits 554 556 +2 ```

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[jlaehne]

@ericpre finally got it to work, the setting of 'bash' was important for it to run under windows as well.

In this context I realized that the hyperspy reusable workflow is running the coverage under all python versions and operating systems - wouldn't one run be enough?