Bump mpi4py from 4.1.0 to 4.1.1

Bumps [mpi4py](https://github.com/mpi4py/mpi4py) from 4.1.0 to 4.1.1.
- [Release notes](https://github.com/mpi4py/mpi4py/releases)
- [Changelog](https://github.com/mpi4py/mpi4py/blob/master/CHANGES.rst)
- [Commits](mpi4py/mpi4py@4.1.0...4.1.1)

---
updated-dependencies:
- dependency-name: mpi4py
  dependency-version: 4.1.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
 imageio==2.37.0
-mpi4py==4.1.0
+mpi4py==4.1.1
 numpy==2.2.4
 pillow==11.3.0