build(deps-dev): bump pip from 26.0.1 to 26.1

Bumps [pip](https://github.com/pypa/pip) from 26.0.1 to 26.1.
- [Changelog](https://github.com/pypa/pip/blob/main/NEWS.rst)
- [Commits](pypa/pip@26.0.1...26.1)

---
updated-dependencies:
- dependency-name: pip
  dependency-version: '26.1'
  dependency-type: indirect
...

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

Author: dependabot[bot]