Bump pip in /{{cookiecutter.project_slug}}/.github/workflows

Bumps [pip](https://github.com/pypa/pip) from 24.0 to 24.3.1.
- [Changelog](https://github.com/pypa/pip/blob/main/NEWS.rst)
- [Commits](pypa/pip@24.0...24.3.1)

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

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

{{cookiecutter.project_slug}}/.github/workflows/constraints.txt

@@ -1,4 +1,4 @@
-pip==24.0
+pip==24.3.1
 poetry==1.8.3
 tox==4.15.0
 tox-gh-actions==3.2.0