Bump scikit-learn from 1.5.2 to 1.6.0 in /requirements

Bumps [scikit-learn](https://github.com/scikit-learn/scikit-learn) from 1.5.2 to 1.6.0.
- [Release notes](https://github.com/scikit-learn/scikit-learn/releases)
- [Commits](scikit-learn/scikit-learn@1.5.2...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/requirements.txt

@@ -27,7 +27,7 @@ psutil==6.1.0
 pyyaml==6.0.2
 rasterio>=1.3.6
 requests==2.32.3
-scikit-learn==1.5.2
+scikit-learn==1.6.0
 setuptools==75.6.0
 starlette==0.40.0 # not directly required, pinned by Dependabot to avoid a vulnerability.
 tabulate==0.9.0