Bump pylammpsmpi from 0.2.5 to 0.2.6

Bumps [pylammpsmpi](https://github.com/pyiron/pylammpsmpi) from 0.2.5 to 0.2.6.
- [Release notes](https://github.com/pyiron/pylammpsmpi/releases)
- [Commits](pyiron/pylammpsmpi@pylammpsmpi-0.2.5...pylammpsmpi-0.2.6)

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

Signed-off-by: dependabot[bot] <[email protected]>

setup.py

@@ -38,7 +38,7 @@
     extras_require={
         "phonopy": ['phonopy==2.20.0', 'seekpath==2.1.0', 'structuretoolkit==0.0.12'],
         "gpaw": ['gpaw==23.9.1'],
-        "lammps": ['pylammpsmpi==0.2.5', 'jinja2==3.1.2', 'pandas==2.1.3']
+        "lammps": ['pylammpsmpi==0.2.6', 'jinja2==3.1.2', 'pandas==2.1.3']
     },
     cmdclass=versioneer.get_cmdclass(),
 )