[fixup] Add Docker login step

Attempt to login to Docker to pull private base images for DSE

Author: emerkle826

.github/workflows/ci.yaml

@@ -246,6 +246,11 @@ jobs:
           image: tonistiigi/binfmt:qemu-v7.0.0-28
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
+      - name: Login to DockerHub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_PASSWORD }}
       - name: Build DSE ${{ matrix.dse-version }}-${{ matrix.base-platform }}
         id: docker_build
         uses: docker/build-push-action@v5