build(deps-dev): bump pip from 25.3 to 26.0 in /requirements.d

Bumps [pip](https://github.com/pypa/pip) from 25.3 to 26.0.
- [Changelog](https://github.com/pypa/pip/blob/main/NEWS.rst)
- [Commits](pypa/pip@25.3...26.0)

---
updated-dependencies:
- dependency-name: pip
  dependency-version: '26.0'
  dependency-type: direct:development
...

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

Author: dependabot[bot]

requirements.d/development.lock.txt

@@ -1,6 +1,6 @@
 setuptools==78.1.1
 setuptools-scm==8.3.1
-pip==25.3
+pip==26.0
 wheel==0.46.2
 virtualenv==20.36.1
 build==1.2.2.post1