⬆️ Bump extern/qfr from 94257ff to 5ae2f78

Bumps [extern/qfr](https://github.com/cda-tum/qfr) from `94257ff` to `5ae2f78`.
- [Release notes](https://github.com/cda-tum/qfr/releases)
- [Commits](munich-quantum-toolkit/core@94257ff...5ae2f78)

---
updated-dependencies:
- dependency-name: extern/qfr
  dependency-type: direct:production
...

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Author: dependabot[bot]