fix: add optional graphrag toggle in dockerfile (#377)

* fix: toggle graphrag install in Docker build

* fix: update Dockerfile

* fix: remove unused logics in chat_fn

* fix: disable duckduckgo test due to API limit

.github/workflows/build-push-docker.yaml

@@ -88,16 +88,34 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Build docker image
+      - name: Build docker image (amd64)
         uses: docker/build-push-action@v6
         with:
           file: Dockerfile
           context: .
           push: true
-          platforms: linux/amd64,linux/arm64
+          platforms: linux/amd64
           tags: |
             ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           target: ${{ matrix.target }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
+          build-args: |
+            ENABLE_GRAPHRAG=true
+
+      - name: Build docker image (arm64)
+        uses: docker/build-push-action@v6
+        with:
+          file: Dockerfile
+          context: .
+          push: true
+          platforms: linux/arm64
+          tags: |
+            ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          target: ${{ matrix.target }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          build-args: |
+            ENABLE_GRAPHRAG=false