Bump fonttools from 4.38.0 to 4.43.0 in /envs (#32)

Bumps [fonttools](https://github.com/fonttools/fonttools) from 4.38.0 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@4.38.0...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>

envs/requirements.txt

@@ -52,7 +52,7 @@ fasteners==0.17.3
 fastjsonschema==2.16.2
 filelock==3.8.2
 flit_core==3.8.0
-fonttools==4.38.0
+fonttools==4.43.0
 fsspec==2022.11.0
 HeapDict==1.0.1
 identify==2.5.10