Update scikit-learn requirement (#1075)

Updates the requirements on [scikit-learn](https://github.com/scikit-learn/scikit-learn) to permit the latest version.
- [Release notes](https://github.com/scikit-learn/scikit-learn/releases)
- [Commits](scikit-learn/scikit-learn@0.21.0...1.4.2)

---
updated-dependencies:
- dependency-name: scikit-learn
  dependency-type: direct:production
...

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pyproject.toml

@@ -30,7 +30,7 @@ dependencies = [
     "pandas>=2.0,<=2.2.1",
     "pybtex",
     "pybtex-apa-style",
-    "scikit-learn>=0.21, <=1.4.1.post1",
+    "scikit-learn>=0.21, <=1.4.2",
     "scipy>=1.2.0, <=1.13.0",
     "threadpoolctl",
 ]