Update Dockerfile

Dockerfile

@@ -1,6 +1,6 @@
 FROM ubuntu:latest
 
-RUN apt update -y && apt install --no-install-recommends -y git gcc wget gzip unzip busybox sudo dropbear fakeroot curl lsof net-tools python3 python3-pip nginx
+RUN apt update -y && apt install --no-install-recommends -y openssh-client git gcc wget gzip unzip busybox sudo dropbear fakeroot curl lsof net-tools python3 python3-pip nginx
 RUN busybox --install /bin
 
 RUN sed -i '/^ubuntu/d' /etc/shadow && echo "ubuntu::19879:0:99999:7:::" >> /etc/shadow && chmod 644 /etc/shadow