fix: build test

.gitea/workflows/build.yml

@@ -17,8 +17,7 @@ jobs:
     - name: start buildkit
       run: |
         mkdir -p /tmp/buildkit
-        /usr/local/bin/buildkitd --root /tmp/buildkit --addr unix:///tmp/buildkit/buildkitd.sock &
-        export BUILDKIT_HOST=unix:///tmp/buildkit/buildkitd.sock
+        /usr/local/bin/buildkitd --root /tmp/buildkit --addr unix:///tmp/buildkit/buildkitd.sock
         sleep 5  # 等待 buildkitd 启动
     - name: Build and push Docker images
       env:
@@ -34,7 +33,7 @@ jobs:
 
           IMAGE_NAME="${HARBOR}/testing/merlin/${name}:${TAG}"
 
-          /usr/local/bin/buildctl --addr $BUILDKIT_HOST build \
+          /usr/local/bin/buildctl --addr /tmp/buildkit/buildkitd.sock build \
             --frontend dockerfile.v0 \
             --local context="$dir" \
             --local dockerfile="$dir" \