Bump cr8 from 0.25.0 to 0.26.0 in /testing/native/python-unittest

Bumps [cr8](https://github.com/mfussenegger/cr8) from 0.25.0 to 0.26.0.
- [Release notes](https://github.com/mfussenegger/cr8/releases)
- [Changelog](https://github.com/mfussenegger/cr8/blob/master/CHANGES.rst)
- [Commits](mfussenegger/cr8@0.25.0...0.26.0)

---
updated-dependencies:
- dependency-name: cr8
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

testing/native/python-unittest/requirements.txt

@@ -1,3 +1,3 @@
-cr8==0.25.0
+cr8==0.26.0
 crash==0.31.4
 setuptools  # Temporary, until next cr8 release.