Bump matplotlib from 3.9.3 to 3.9.4

Bumps [matplotlib](https://github.com/matplotlib/matplotlib) from 3.9.3 to 3.9.4.
- [Release notes](https://github.com/matplotlib/matplotlib/releases)
- [Commits](matplotlib/matplotlib@v3.9.3...v3.9.4)

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

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

pyproject.toml

@@ -22,7 +22,7 @@ pytest-cov = "*"
 seaborn = "^0.13.2"
 dask = "^2024.7.0"
 tqdm = "^4.67.1"
-matplotlib = "^3.9.3"
+matplotlib = "^3.9.4"
 refinitiv-data = "*"
 clarabel = "*"