revert

.github/workflows/prepare-release.yml

@@ -175,10 +175,9 @@ jobs:
       - name: Build native test server (Docker)
         if: matrix.os_family == 'Linux'
         run: |
-          image="$(docker buildx build -q $(pwd)/docker/native-image)"
           docker run \
             --rm -v "$(pwd):/workspace" -w /workspace \
-            ${image} \
+            $(docker build -q ./docker/native-image) \
             sh -c "./gradlew :temporal-test-server:build"
       # path ends in a wildcard because on windows the file ends in '.exe'
       # path excludes *.txt because native-image also writes a build manifest txt file