feat: require `safe-ds` version 0.28.0

[lars-reimann]

Summary of Changes

Require the latest version of safe-ds (0.28.0).

[github-actions[bot]]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ REPOSITORY	git_diff	yes		no	0.01s

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[codecov[bot]]

Codecov Report

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

Project coverage is 100.00%. Comparing base (1e45467) to head (5c4743e). Report is 3 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #149 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 15 15 Lines 792 792 ========================================= Hits 792 792 ```

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[lars-reimann]

:tada: This PR is included in version 0.18.0 :tada:

The release is available on:

• v0.18.0
• GitHub release

Your semantic-release bot :package::rocket: