Bump matplotlib from 3.8.2 to 3.9.0

Bumps [matplotlib](https://github.com/matplotlib/matplotlib) from 3.8.2 to 3.9.0.
- [Release notes](https://github.com/matplotlib/matplotlib/releases)
- [Commits](matplotlib/matplotlib@v3.8.2...v3.9.0)

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

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

tests/requirements.txt

@@ -1,6 +1,6 @@
 numpy==1.26.4
 torch>=2.0.0
-matplotlib==3.8.2
+matplotlib==3.9.0
 pytest==7.4.4
 pytest-cov==4.1.0
 PyYAML==6.0.1