Bump zopfli from 0.2.3 to 0.2.3.post1

Bumps [zopfli](https://github.com/fonttools/py-zopfli) from 0.2.3 to 0.2.3.post1.
- [Release notes](https://github.com/fonttools/py-zopfli/releases)
- [Commits](fonttools/py-zopfli@v0.2.3...v0.2.3.post1)

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

Signed-off-by: dependabot[bot] <support@github.com>

pyproject.toml

@@ -71,7 +71,7 @@ dependencies = [
     "tomli==2.0.2",
     "xmltodict==0.14.2",
     "zope-structuredtext==5.0",
-    "zopfli==0.2.3",
+    "zopfli==0.2.3.post1",
 ]
 
 [tool.coverage.run]