⬆️ Bump extern/mqt-core

Bumps the submodules group with 1 update in the / directory: [extern/mqt-core](https://github.com/cda-tum/mqt-core).


Updates `extern/mqt-core` from `f0517f0` to `4db8776`
- [Release notes](https://github.com/cda-tum/mqt-core/releases)
- [Commits](cda-tum/mqt-core@f0517f0...4db8776)

---
updated-dependencies:
- dependency-name: extern/mqt-core
  dependency-type: direct:production
  dependency-group: submodules
...

Signed-off-by: dependabot[bot] <support@github.com>