Bump urllib3 from 2.5.0 to 2.6.0

Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.5.0 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@2.5.0...2.6.0)

---
updated-dependencies:
- dependency-name: urllib3
  dependency-version: 2.6.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pyproject.toml

@@ -98,7 +98,7 @@ optional-dependencies.dev = [
     "types-docker==7.1.0.20251202",
     "types-pyyaml==6.0.12.20250915",
     "types-requests==2.32.4.20250913",
-    "urllib3==2.5.0",
+    "urllib3==2.6.0",
     "vulture==2.14",
     "vws-python==2025.3.10.1",
     "vws-test-fixtures==2023.3.5",