Bump fonttools from 4.39.4 to 4.43.0

Bumps [fonttools](https://github.com/fonttools/fonttools) from 4.39.4 to 4.43.0.
- [Release notes](https://github.com/fonttools/fonttools/releases)
- [Changelog](https://github.com/fonttools/fonttools/blob/main/NEWS.rst)
- [Commits](fonttools/fonttools@4.39.4...4.43.0)

---
updated-dependencies:
- dependency-name: fonttools
  dependency-type: indirect
...

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Author: dependabot[bot]