build(deps): bump urllib3 from 2.3.0 to 2.6.0

Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.3.0 to 2.6.0.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@2.3.0...2.6.0)

---
updated-dependencies:
- dependency-name: urllib3
  dependency-version: 2.6.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -68,7 +68,7 @@ types-python-dateutil==2.9.0.20241206  # via arrow
 typing-extensions==4.12.2  # via bravado, cwltool, gherkin-official, referencing, swagger-spec-validator
 tzdata==2025.1            # via kombu
 uri-template==1.3.0       # via jsonschema
-urllib3==2.3.0            # via requests
+urllib3==2.6.0            # via requests
 vine==5.1.0               # via amqp, kombu
 wcmatch==8.4.1            # via reana-commons
 webcolors==24.11.1        # via jsonschema