build(deps): bump urllib3 from 1.25.7 to 1.26.18 in /components/crud-web-apps/common/backend/kubeflow/kubeflow/crud_backend (#7363)

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.25.7 to 1.26.18.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](https://github.com/urllib3/urllib3/compare/1.25.7...1.26.18)

---
updated-dependencies:
- dependency-name: urllib3
  dependency-type: direct:production
...

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components/crud-web-apps/common/backend/kubeflow/kubeflow/crud_backend/requirements.txt

@@ -2,5 +2,5 @@ Flask==1.1.1
 Flask-API==2.0
 kubernetes==10.0.1
 requests==2.22.0
-urllib3==1.25.7
+urllib3==1.26.18
 Werkzeug==0.16.0