Bump phonopy from 2.26.5 to 2.26.6 (#930)

Bumps [phonopy](https://github.com/phonopy/phonopy) from 2.26.5 to 2.26.6.
- [Changelog](https://github.com/phonopy/phonopy/blob/develop/doc/changelog.md)
- [Commits](phonopy/phonopy@v2.26.5...v2.26.6)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pyproject.toml

@@ -98,7 +98,7 @@ strict = [
     "monty==2024.5.24",
     "mp-api==0.41.2",
     "numpy",
-    "phonopy==2.26.5",
+    "phonopy==2.26.6",
     "pydantic-settings==2.3.4",
     "pydantic==2.8.2",
     "pymatgen-analysis-defects==2024.5.11",