Bump docker/login-action from 3.4.0 to 4.6.0 (#764)

Bumps [docker/login-action](https://github.com/docker/login-action) from 3.4.0 to 4.6.0.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](docker/login-action@74a5d14...dbcb813)

---
updated-dependencies:
- dependency-name: docker/login-action
  dependency-version: 3.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]

.github/workflows/docker.yml

@@ -26,7 +26,7 @@ jobs:
 
       - name: Log in to Docker Hub
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772
+        uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}