build(deps): bump styfle/cancel-workflow-action from 0.12.0 to 0.12.1

Bumps [styfle/cancel-workflow-action](https://github.com/styfle/cancel-workflow-action) from 0.12.0 to 0.12.1.
- [Release notes](https://github.com/styfle/cancel-workflow-action/releases)
- [Commits](styfle/cancel-workflow-action@0.12.0...0.12.1)

---
updated-dependencies:
- dependency-name: styfle/cancel-workflow-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
             # about to do the exact same tests and documentation on potentially new
             # code, so it is pointless to continue them.
             -   name: Cancel existing workflow runs
-                uses: styfle/cancel-workflow-action@0.12.0
+                uses: styfle/cancel-workflow-action@0.12.1
                 with:
                     access_token: ${{ github.token }}