update ci workflow

.woodpecker/build_image.yaml

@@ -5,7 +5,13 @@ when:
 
 steps:
   - name: "Build Image"
-    image: "docker:dind"
-    privileged: true
-    commands:
-      - "docker build -t git.1e99.eu/1e99/passed:$CI_COMMIT_SHA ."
+    image: "woodpeckerci/plugin-docker-buildx"
+    settings:
+      repo: "1e99/passed"
+      dockerfile: "Dockerfile"
+      platforms: "linux/amd64"
+      tags: "latest,${CI_COMMIT_SHA}"
+      username:
+        from_secret: "DOCKER_USERNAME"
+      password:
+        from_secret: "DOCKER_PASSWORD"