Bump scikit-learn from 1.2.2 to 1.5.0 in /nl_server

Bumps [scikit-learn](https://github.com/scikit-learn/scikit-learn) from 1.2.2 to 1.5.0.
- [Release notes](https://github.com/scikit-learn/scikit-learn/releases)
- [Commits](scikit-learn/scikit-learn@1.2.2...1.5.0)

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

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

nl_requirements.txt

@@ -4,7 +4,7 @@ google-cloud-aiplatform==1.42.1
 google-cloud-storage==2.15.0
 lancedb==0.6.8
 pandas==2.1.0
-scikit-learn==1.2.2
+scikit-learn==1.5.0
 sentence-transformers==2.2.2
 spacy==3.7.4
 torchvision==0.17.2