Bump matplotlib from 3.9.1 to 3.9.1.post1 in the dependencies group

Bumps the dependencies group with 1 update: [matplotlib](https://github.com/matplotlib/matplotlib).


Updates `matplotlib` from 3.9.1 to 3.9.1.post1
- [Release notes](https://github.com/matplotlib/matplotlib/releases)
- [Commits](matplotlib/matplotlib@v3.9.1...v3.9.1.post1)

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

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