Bump fonttools from 4.55.2 to 4.55.3 in /.github/dependabot

Bumps [fonttools](https://github.com/fonttools/fonttools) from 4.55.2 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@4.55.2...4.55.3)

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

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

.github/dependabot/constraints.txt

@@ -3,7 +3,7 @@ contourpy<=1.3.1
 cycler==0.12.1
 EXtra-data==1.18.0
 EXtra-geom==1.12.0
-fonttools==4.55.2
+fonttools==4.55.3
 h5py==3.12.1
 karabo-bridge==0.7.0
 kiwisolver==1.4.7