Bump fonttools from 4.29.1 to 4.43.0

Bumps [fonttools](https://github.com/fonttools/fonttools) from 4.29.1 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@4.29.1...4.43.0)

---
updated-dependencies:
- dependency-name: fonttools
  dependency-type: direct:production
...

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

requirements.txt

@@ -5,7 +5,7 @@ charset-normalizer==2.0.12
 click==8.0.4
 cycler==0.11.0
 decorator==4.4.2
-fonttools==4.29.1
+fonttools==4.43.0
 idna==3.3
 imagecodecs==2023.9.18
 imageio==2.16.0