Bump matplotlib from 3.8.0 to 3.8.1

Bumps [matplotlib](https://github.com/matplotlib/matplotlib) from 3.8.0 to 3.8.1.
- [Release notes](https://github.com/matplotlib/matplotlib/releases)
- [Commits](matplotlib/matplotlib@v3.8.0...v3.8.1)

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

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

requirements.txt

@@ -6,7 +6,7 @@ astroscrappy == 1.1.0
 click == 8.1.7
 cmcrameri == 1.7.0
 markdown == 3.5
-matplotlib == 3.8.0
+matplotlib == 3.8.1
 numpy == 1.26.1
 paramiko == 3.3.1
 photutils == 1.9.0