Bump pip in /.github/workflows in the patches-and-minor-upgrades group

Bumps the patches-and-minor-upgrades group in /.github/workflows with 1 update: [pip](https://github.com/pypa/pip).


Updates `pip` from 25.2 to 25.3
- [Changelog](https://github.com/pypa/pip/blob/main/NEWS.rst)
- [Commits](pypa/pip@25.2...25.3)

---
updated-dependencies:
- dependency-name: pip
  dependency-version: '25.3'
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: patches-and-minor-upgrades
...

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

Author: dependabot[bot]

.github/workflows/requirements.txt

@@ -1,2 +1,2 @@
-pip==25.2
+pip==25.3
 poetry==2.2.1