Bump scikit-learn from 1.2.2 to 1.5.0 in /backend/worker

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]>

backend/worker/requirements.txt

@@ -25,7 +25,7 @@ pytz-deprecation-shim==0.1.0.post0
 regex==2023.3.23
 requests==2.31.0
 requests-http-signature==0.2.0
-scikit-learn==1.2.2
+scikit-learn==1.5.0
 Scrapy==2.11.2
 setuptools==65.5.1
 six==1.16.0