Bump scikit-learn from 1.4.1.post1 to 1.6.0

Bumps [scikit-learn](https://github.com/scikit-learn/scikit-learn) from 1.4.1.post1 to 1.6.0.
- [Release notes](https://github.com/scikit-learn/scikit-learn/releases)
- [Commits](scikit-learn/scikit-learn@1.4.1.post1...1.6.0)

---
updated-dependencies:
- dependency-name: scikit-learn
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements_test.txt

@@ -3,7 +3,7 @@
 numpy>=1.18.5,<1.27
 scipy==1.10.1
 matplotlib==3.7.1
-scikit-learn==1.4.1.post1
+scikit-learn==1.6.0
 six==1.16.0
 Pillow==10.3.0
 tqdm==4.66.4