Restore context in EdgeCraftRAG build.yaml. (#1895)

Restore context in EdgeCraftRAG build.yaml to avoid the issue of can't find Dockerfiles.

Signed-off-by: ZePan110 <ze.pan@intel.com>

EdgeCraftRAG/docker_image_build/build.yaml

@@ -14,16 +14,19 @@ services:
     image: ${REGISTRY:-opea}/edgecraftrag:${TAG:-latest}
   edgecraftrag-server:
     build:
+      context: ../
       dockerfile: ./Dockerfile.server
     extends: edgecraftrag
     image: ${REGISTRY:-opea}/edgecraftrag-server:${TAG:-latest}
   edgecraftrag-ui:
     build:
+      context: ../
       dockerfile: ./ui/docker/Dockerfile.ui
     extends: edgecraftrag
     image: ${REGISTRY:-opea}/edgecraftrag-ui:${TAG:-latest}
   edgecraftrag-ui-gradio:
     build:
+      context: ../
       dockerfile: ./ui/docker/Dockerfile.gradio
     extends: edgecraftrag
     image: ${REGISTRY:-opea}/edgecraftrag-ui-gradio:${TAG:-latest}