Bump fonttools from 4.59.2 to 4.60.0

Bumps [fonttools](https://github.com/fonttools/fonttools) from 4.59.2 to 4.60.0.
- [Release notes](https://github.com/fonttools/fonttools/releases)
- [Changelog](https://github.com/fonttools/fonttools/blob/main/NEWS.rst)
- [Commits](fonttools/fonttools@4.59.2...4.60.0)

---
updated-dependencies:
- dependency-name: fonttools
  dependency-version: 4.60.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -83,7 +83,7 @@ executing==2.2.1
     # via stack-data
 fastjsonschema==2.21.2
     # via nbformat
-fonttools==4.59.2
+fonttools==4.60.0
     # via matplotlib
 fsspec==2025.9.0
     # via dask