Bump matplotlib from 3.9.1 to 3.9.2 in /spark (#175)

Bumps [matplotlib](https://github.com/matplotlib/matplotlib) from 3.9.1 to 3.9.2.
- [Release notes](https://github.com/matplotlib/matplotlib/releases)
- [Commits](matplotlib/matplotlib@v3.9.1...v3.9.2)

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

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

spark/requirements.txt

@@ -2,6 +2,6 @@ jupyter==1.0.0
 spylon-kernel==0.4.1
 pyiceberg[pyarrow,duckdb,pandas]==0.7.0
 jupysql==0.10.5
-matplotlib==3.9.1
+matplotlib==3.9.2
 scipy==1.14.0
 duckdb-engine==0.13.1