Bump the production-dependencies group with 2 updates

Bumps the production-dependencies group with 2 updates: [matplotlib](https://github.com/matplotlib/matplotlib) and [pyside6](https://pyside.org).


Updates `matplotlib` from 3.8.3 to 3.8.4
- [Release notes](https://github.com/matplotlib/matplotlib/releases)
- [Commits](matplotlib/matplotlib@v3.8.3...v3.8.4)

Updates `pyside6` from 6.6.2 to 6.7.0

---
updated-dependencies:
- dependency-name: matplotlib
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: production-dependencies
- dependency-name: pyside6
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: production-dependencies
...

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