MNT: (deps): Bump matplotlib from 3.9.3 to 3.10.0 in /ci (#330)

Bumps [matplotlib](https://github.com/matplotlib/matplotlib) from 3.9.3 to 3.10.0.
- [Release notes](https://github.com/matplotlib/matplotlib/releases)
- [Commits](matplotlib/matplotlib@v3.9.3...v3.10.0)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

ci/requirements.txt

@@ -1,5 +1,5 @@
 python>=3.7
-matplotlib==3.9.3
+matplotlib==3.10.0
 numpy==2.2.0
 pandas==2.2.3
 netcdf4==1.7.2