Be quiet when installing bugbug package in the test scheduling history push data retrieval task

infra/data-pipeline.yml

@@ -100,7 +100,7 @@ tasks:
           - "/bin/bash"
           - "-cx"
           - "wget https://github.com/mozilla/bugbug/raw/${version}/scripts/test_scheduling_history_retriever.py &&
-             pip install bugbug==${version} &&
+             pip install --quiet --no-cache-dir bugbug==${version} &&
              python test_scheduling_history_retriever.py retrieve"
 
         artifacts: