Deps: Bump librt from 0.7.4 to 0.7.5 in the python-packages group

Bumps the python-packages group with 1 update: [librt](https://github.com/mypyc/librt).


Updates `librt` from 0.7.4 to 0.7.5
- [Commits](mypyc/librt@v0.7.4...v0.7.5)

---
updated-dependencies:
- dependency-name: librt
  dependency-version: 0.7.5
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: python-packages
...

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Author: dependabot[bot]