Bump fonttools from 4.50.0 to 4.51.0 in the python-packages group

Bumps the python-packages group with 1 update: [fonttools](https://github.com/fonttools/fonttools).


Updates `fonttools` from 4.50.0 to 4.51.0
- [Release notes](https://github.com/fonttools/fonttools/releases)
- [Changelog](https://github.com/fonttools/fonttools/blob/main/NEWS.rst)
- [Commits](fonttools/fonttools@4.50.0...4.51.0)

---
updated-dependencies:
- dependency-name: fonttools
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: python-packages
...

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

requirements.txt

@@ -1,4 +1,4 @@
-fonttools==4.50.0
+fonttools==4.51.0
 fontmake==3.9.0
 git+https://github.com/googlefonts/fontra.git
 git+https://github.com/googlefonts/fontra-rcjk.git