use buildx

Author: skudasov

.github/workflows/framework-build-cache.yml

@@ -50,6 +50,8 @@ jobs:
         with:
           repository: smartcontractkit/chainlink
           path: chainlink-repo
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
       - name: Set up Environment Variables
         run: |
           echo "GITHUB_SERVER_URL=${{ github.server_url }}" >> $GITHUB_ENV

framework/docker.go

@@ -283,6 +283,7 @@ func BuildImageOnce(once *sync.Once, dctx, dfile, nameAndTag string) error {
 			"docker",
 			"buildx",
 			"build",
+			"--load",
 			"--cache-from",
 			fmt.Sprintf("type=gha,url=%s,token=%s,scope=ctfdocker", cacheURL, githubToken),
 			"--cache-to",