Bump matplotlib from 3.6.0 to 3.6.1 (#158)

Bumps [matplotlib](https://github.com/matplotlib/matplotlib) from 3.6.0 to 3.6.1.
- [Release notes](https://github.com/matplotlib/matplotlib/releases)
- [Commits](https://github.com/matplotlib/matplotlib/compare/v3.6.0...v3.6.1)

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

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dev-requirements.txt

@@ -1,4 +1,4 @@
-matplotlib==3.6.0
+matplotlib==3.6.1
 art==5.7
 vulture>=1.0
 bandit>=1.5.1