Build(deps): Bump matplotlib from 3.8.4 to 3.9.0

Bumps [matplotlib](https://github.com/matplotlib/matplotlib) from 3.8.4 to 3.9.0.
- [Release notes](https://github.com/matplotlib/matplotlib/releases)
- [Commits](matplotlib/matplotlib@v3.8.4...v3.9.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

requirements.txt

@@ -8,7 +8,7 @@ mkdocs-material==9.5.18
 mkdocs-macros-plugin==1.0.5
 mkdocs-jupyter==0.24.7
 pymdown-extensions==10.8.1
-matplotlib==3.8.4
+matplotlib==3.9.0
 pandas==2.2.2
 scikit-learn==1.4.2
 jupyter==1.0.0