Update Docker workflow to use DOCKER_TOKEN secret

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Co-Authored-By: Claude <noreply@anthropic.com>

Author: sionsmith

.github/workflows/docker-publish.yml

@@ -32,7 +32,7 @@ jobs:
         uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
+          password: ${{ secrets.DOCKER_TOKEN }}
 
       - name: Extract metadata
         id: meta