Bump the workflows-dependencies group across 1 directory with 2 updates

Bumps the workflows-dependencies group with 2 updates in the /.github/workflows directory: [pip](https://github.com/pypa/pip) and [virtualenv](https://github.com/pypa/virtualenv).


Updates `pip` from 24.0 to 24.2
- [Changelog](https://github.com/pypa/pip/blob/main/NEWS.rst)
- [Commits](pypa/pip@24.0...24.2)

Updates `virtualenv` from 20.26.2 to 20.26.3
- [Release notes](https://github.com/pypa/virtualenv/releases)
- [Changelog](https://github.com/pypa/virtualenv/blob/main/docs/changelog.rst)
- [Commits](pypa/virtualenv@20.26.2...20.26.3)

---
updated-dependencies:
- dependency-name: pip
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: workflows-dependencies
- dependency-name: virtualenv
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: workflows-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/constraints.txt

@@ -1,5 +1,5 @@
-pip==24.0
+pip==24.2
 nox==2024.4.15
 nox-poetry==1.0.3
 poetry==1.8.3
-virtualenv==20.26.2
+virtualenv==20.26.3