add wget in docker

Dockerfile

@@ -12,6 +12,7 @@ RUN apt-get update && apt-get install --no-install-recommends -y \
     python3-dev \
     git \
     ffmpeg \
+    wget \
     google-perftools \
     ca-certificates curl gnupg \
     && apt-get clean && rm -rf /var/lib/apt/lists/*