Fix sdk ci (#21)

* fix sdk python ci

* update

Author: oeqqwq

.circleci/continue-config.yml

@@ -42,6 +42,10 @@ commands:
           command: |
             echo ${gcs_content} > ../gcs.data
             ../devtools/bazel_cache_setup.py --in_file=../gcs.data --out_file=../gcs.json --min_download
+      - run:
+          name: Install Python dependencies
+          command: |
+            python3 -m pip install -r ./dataproxy_sdk/python/requirements.txt
       - run:
           name: "build"
           command: |