fix: add missing steps in release workflow to setup docker buildx (argoproj#8311)

Signed-off-by: Alexander Matyushentsev <[email protected]>
Signed-off-by: pashavictorovich <[email protected]>

Author: Alexander Matyushentsev

.github/workflows/release.yaml

@@ -197,6 +197,8 @@ jobs:
         if: ${{ env.DRY_RUN != 'true' }}
 
 
+      - uses: docker/setup-qemu-action@v1
+      - uses: docker/setup-buildx-action@v1
       - name: Build and push Docker image for release
         run: |
           set -ue