Bump skia-python from 138 to 144.0.post1

Bumps [skia-python](https://github.com/kyamagu/skia-python) from 138 to 144.0.post1.
- [Release notes](https://github.com/kyamagu/skia-python/releases)
- [Commits](skia-python/skia-python@v138.0...v144.0.post1)

---
updated-dependencies:
- dependency-name: skia-python
  dependency-version: 144.0.post1
  dependency-type: direct:production
...

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Author: dependabot[bot]

requirements.txt

@@ -2,7 +2,7 @@
 dukpy==0.5.0
 
 # Skia is used in Chapters 11+ for advanced graphics
-skia-python==138
+skia-python==144.0.post1
 pybind11==3.0.1
 
 # SDL2 is used in Chapters 11+ for a Skia-compatible GUI