Bump spglib from 2.0.2 to 2.1.0

Bumps [spglib](https://github.com/spglib/spglib) from 2.0.2 to 2.1.0.
- [Release notes](https://github.com/spglib/spglib/releases)
- [Changelog](https://github.com/spglib/spglib/blob/develop/ChangeLog)
- [Commits](spglib/spglib@v2.0.2...v2.1.0)

---
updated-dependencies:
- dependency-name: spglib
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

setup.py

@@ -41,9 +41,9 @@
         "nglview": ['nglview==3.0.6'],
         "plotly": ['plotly==5.17.0'],
         "clusters": ['scikit-learn==1.3.1'],
-        "symmetry": ['spglib==2.0.2'],
-        "surface": ['spglib==2.0.2', 'pymatgen==2023.9.10'],
-        "phonopy": ['phonopy==2.20.0', 'spglib==2.0.2'],
+        "symmetry": ['spglib==2.1.0'],
+        "surface": ['spglib==2.1.0', 'pymatgen==2023.9.10'],
+        "phonopy": ['phonopy==2.20.0', 'spglib==2.1.0'],
         "pyxtal": ['pyxtal==0.6.0']
     },
     cmdclass=versioneer.get_cmdclass(),