Bump structuretoolkit from 0.0.11 to 0.0.12

Bumps [structuretoolkit](https://github.com/pyiron/structuretoolkit) from 0.0.11 to 0.0.12.
- [Release notes](https://github.com/pyiron/structuretoolkit/releases)
- [Commits](pyiron/structuretoolkit@structuretoolkit-0.0.11...structuretoolkit-0.0.12)

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

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

setup.py

@@ -36,7 +36,7 @@
         'spglib==2.1.0',
     ],
     extras_require={
-        "phonopy": ['phonopy==2.20.0', 'seekpath==2.1.0', 'structuretoolkit==0.0.11'],
+        "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']
     },