chore(deps): bump scikit-learn to 1.9.0

Bumps [scikit-learn](https://github.com/scikit-learn/scikit-learn) from 1.8.0 to 1.9.0.
- [Release notes](https://github.com/scikit-learn/scikit-learn/releases)
- [Commits](scikit-learn/scikit-learn@1.8.0...1.9.0)

---
updated-dependencies:
- dependency-name: scikit-learn
  dependency-version: 1.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements-lock.txt

@@ -4,7 +4,7 @@ requests==2.34.2
 matplotlib==3.10.9
 PyYAML==6.0.3
 lightgbm==4.6.0
-scikit-learn==1.8.0
+scikit-learn==1.9.0
 scipy==1.17.1
 joblib==1.5.3
 google-cloud-storage==3.10.1

requirements.txt

@@ -4,7 +4,7 @@ requests>=2.34.2
 matplotlib>=3.10.9
 PyYAML>=6.0
 lightgbm>=4.3
-scikit-learn>=1.4
+scikit-learn>=1.9.0
 scipy>=1.11
 joblib>=1.3
 google-cloud-storage>=2.16