Log Message:
py-fonttools: update to 4.54.1.

4.54.1 (released 2024-09-24)
----------------------------

- [unicodedata] Update to Unicode 16
- [subset] Escape ``\\`` in doc string

4.54.0 (released 2024-09-23)
----------------------------

- [Docs] Small docs cleanups by @n8willis (#3611)
- [Docs] cleanup code blocks by @n8willis (#3627)
- [Docs] fix Sphinx builds by @n8willis (#3625)
- [merge] Minor fixes to documentation for merge by @drj11 (#3588)
- [subset] Small tweaks to pyftsubset documentation by @RoelN (#3633)
- [Tests] Do not require fonttools command to be available by @behdad (#3612)
- [Tests] subset_test: add failing test to reproduce issue #3616 by @anthrotype \ 
(#3622)
- [ttLib] NameRecordVisitor: include whole sequence of character variants' UI \ 
labels, not just the first by @anthrotype (#3617)
- [varLib.avar] Reconstruct mappings from binary by @behdad (#3598)
- [varLib.instancer] Fix visual artefacts with partial L2 instancing by @Hoolean \ 
(#3635)
- [varLib.interpolatable] Support discrete axes in .designspace by @behdad (#3599)
- [varLib.models] By default, assume OpenType-like normalized space by @behdad \ 
(#3601)