🔥 remove check-sdist from pre-commit

[burgholzer]

Description

This PR removes the slow check-sdist pre-commit check. It is now handled by the reusable workflows in mqt-core.

Checklist:

• [x] The pull request only contains commits that are related to it.
• [x] I have added appropriate tests and documentation.
• [x] I have made sure that all CI jobs on GitHub pass.
• [x] The pull request introduces no new warnings and follows the project's style guidelines.