self hosted docker builds attempted fix (#4603)

.github/workflows/docker.yml

@@ -103,17 +103,22 @@ jobs:
             - name: Set modernity suffix
               if: endsWith(matrix.binary, '-portable') != true
               run: echo "MODERNITY_SUFFIX=-modern" >> $GITHUB_ENV;
-            # Install dependencies for emulation. Have to create a new builder to pick up emulation support.
-            - name: Build Dockerfile and push
-              run: |
-                  docker run --privileged --rm tonistiigi/binfmt --install ${SHORT_ARCH}
-                  docker buildx create --use --name cross-builder
-                  docker buildx build \
-                      --platform=linux/${SHORT_ARCH} \
-                      --file ./Dockerfile.cross . \
-                      --tag ${IMAGE_NAME}:${VERSION}-${SHORT_ARCH}${VERSION_SUFFIX}${MODERNITY_SUFFIX}${FEATURE_SUFFIX} \
-                      --provenance=false \
-                      --push
+
+            - name: Install QEMU
+              run: sudo apt-get update && sudo apt-get install -y qemu-user-static
+
+            - name: Set up Docker Buildx
+              uses: docker/setup-buildx-action@v2
+
+            - name: Build and push
+              uses: docker/build-push-action@v4
+              with:
+                file: ./Dockerfile.cross
+                context: .
+                platforms: linux/${SHORT_ARCH}
+                push: true
+                tags: ${IMAGE_NAME}:${VERSION}-${SHORT_ARCH}${VERSION_SUFFIX}${MODERNITY_SUFFIX}${FEATURE_SUFFIX}
+
     build-docker-multiarch:
         name: build-docker-multiarch${{ matrix.modernity }}
         runs-on: ubuntu-22.04