Bump andymckay/cancel-action from 0.3 to 0.4

Bumps [andymckay/cancel-action](https://github.com/andymckay/cancel-action) from 0.3 to 0.4.
- [Release notes](https://github.com/andymckay/cancel-action/releases)
- [Commits](andymckay/cancel-action@0.3...0.4)

---
updated-dependencies:
- dependency-name: andymckay/cancel-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/ci.yaml

@@ -126,4 +126,4 @@ jobs:
       - run: cargo sort --check
       - name: Cancel workflow
         if: failure()
-        uses: andymckay/cancel-action@0.3
+        uses: andymckay/cancel-action@0.4