build(deps): bump docker/login-action from 2.0.0 to 2.1.0

Bumps [docker/login-action](https://github.com/docker/login-action) from 2.0.0 to 2.1.0.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](https://github.com/docker/login-action/compare/v2.0.0...v2.1.0)

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

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f64c4f8..5e547de 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -19,7 +19,7 @@
         if: steps.changed-files.outputs.any_changed == 'true'
       - run: echo PROJECT_REF=$(cat images/prometheus-ethtool-exporter/ref) >> $GITHUB_ENV
         if: steps.changed-files.outputs.any_changed == 'true'
-      - uses: docker/login-action@v2.0.0
+      - uses: docker/login-action@v2.1.0
         if: steps.changed-files.outputs.any_changed == 'true'
         with:
           registry: quay.io