Bump pyiron-atomistics from 0.3.0 to 0.3.1

Bumps [pyiron-atomistics](https://github.com/pyiron/pyiron_atomistics) from 0.3.0 to 0.3.1.
- [Release notes](https://github.com/pyiron/pyiron_atomistics/releases)
- [Changelog](https://github.com/pyiron/pyiron_atomistics/blob/main/CHANGELOG.md)
- [Commits](pyiron/pyiron_atomistics@pyiron_atomistics-0.3.0...pyiron_atomistics-0.3.1)

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

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

setup.py

@@ -26,7 +26,7 @@
     keywords='pyiron',
     packages=find_packages(exclude=["*tests*", "*docs*", "*binder*", "*conda*", "*notebooks*", "*.ci_support*"]),
     install_requires=[
-        'pyiron_atomistics==0.3.0'
+        'pyiron_atomistics==0.3.1'
     ],
     cmdclass=versioneer.get_cmdclass(),