fix: unstructured io credential environment variables missing (#10953)

docker/docker-compose.yaml

@@ -222,6 +222,7 @@ x-shared-env: &shared-api-worker-env
   UPLOAD_FILE_BATCH_LIMIT: ${UPLOAD_FILE_BATCH_LIMIT:-5}
   ETL_TYPE: ${ETL_TYPE:-dify}
   UNSTRUCTURED_API_URL: ${UNSTRUCTURED_API_URL:-}
+  UNSTRUCTURED_API_KEY: ${UNSTRUCTURED_API_KEY:-}
   PROMPT_GENERATION_MAX_TOKENS: ${PROMPT_GENERATION_MAX_TOKENS:-512}
   CODE_GENERATION_MAX_TOKENS: ${CODE_GENERATION_MAX_TOKENS:-1024}
   MULTIMODAL_SEND_IMAGE_FORMAT: ${MULTIMODAL_SEND_IMAGE_FORMAT:-base64}