add software-properties-common to docker

Dockerfile

@@ -5,6 +5,7 @@ ARG DEBIAN_FRONTEND=noninteractive
 RUN apt -y update
 RUN apt -y upgrade
 RUN apt -y autoremove
+RUN apt install -y software-properties-common
 RUN apt install -y supervisor
 RUN apt install -y python3-pip
 RUN apt install -y ffmpeg