chore(deps): bump fonttools from 4.42.1 to 4.43.0

Bumps [fonttools](https://github.com/fonttools/fonttools) from 4.42.1 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@4.42.1...4.43.0)

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

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

requirements.txt

@@ -12,7 +12,7 @@ Cython==3.0.2
 ephem==4.1.4
 filelock==3.12.2
 Flask==2.2.5
-fonttools==4.42.1
+fonttools==4.43.0
 fsspec==2023.6.0
 gunicorn==22.0.0
 holidays==0.31