Update .drone.yml

.drone.yml

@@ -15,13 +15,12 @@ environment:
 
 steps:
   - name: build image
-    image: plugins/docker
+    image: thegeeklab/drone-docker-buildx
     commands:
       - cd /drone/src/
-      - docker build --platform linux/amd64 -t $${REGISTRY_SERVER_NAME}/$${IMAGE_NAME}:amd64 -f Dockerfile .
-      - docker push $${REGISTRY_SERVER_NAME}/$${IMAGE_NAME}:amd64
-      - docker build --platform linux/arm64 -t $${REGISTRY_SERVER_NAME}/$${IMAGE_NAME}:arm64 -f Dockerfile .
-      - docker push $${REGISTRY_SERVER_NAME}/$${IMAGE_NAME}:arm64
+      - docker buildx create --name mybuilder --use --bootstrap
+      - docker buildx build --platform linux/amd64,linux/arm64 --tag $${REGISTRY_SERVER_NAME}/$${IMAGE_NAME} -f Dockerfile .
+      - docker push $${REGISTRY_SERVER_NAME}/$${IMAGE_NAME}
     when:
       branch:
         - main