Bump fonttools from 4.51.0 to 4.55.3 in /tools

Bumps [fonttools](https://github.com/fonttools/fonttools) from 4.51.0 to 4.55.3.
- [Release notes](https://github.com/fonttools/fonttools/releases)
- [Changelog](https://github.com/fonttools/fonttools/blob/main/NEWS.rst)
- [Commits](fonttools/fonttools@4.51.0...4.55.3)

---
updated-dependencies:
- dependency-name: fonttools
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

tools/ci/requirements_build.txt

@@ -1,5 +1,5 @@
 cairocffi==1.7.0
-fonttools==4.51.0
+fonttools==4.55.3
 genshi==0.7.7
 jinja2==3.1.4
 pyyaml==6.0.1