Bump fonttools from 4.41.1 to 4.43.0 in /docker (#27)

Bumps [fonttools](https://github.com/fonttools/fonttools) from 4.41.1 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@4.41.1...4.43.0)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

docker/requirements.txt

@@ -8,7 +8,7 @@ contourpy==1.1.0
 cycler==0.11.0
 Farama-Notifications==0.0.4
 filelock==3.12.2
-fonttools==4.41.1
+fonttools==4.43.0
 google-auth==2.23.2
 google-auth-oauthlib==1.0.0
 grpcio==1.59.0