Bump pip from 25.3 to 26.0 in the uv group across 1 directory

Bumps the uv group with 1 update in the / directory: [pip](https://github.com/pypa/pip).

Updates `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
  dependency-group: uv
...

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

Author: dependabot[bot]

changelog.d/+bump-pip.infrastructure.md

@@ -0,0 +1 @@
+Bump pip version.