fix(docker): add openssh-client to Docker image for SSH terminal backend — v0.50.157 (PR #868 by @frap129)

Adds openssh-client to apt-get install block so Docker users running the SSH terminal backend can connect to remote agents. Closes #868.

Dockerfile

@@ -24,6 +24,7 @@ RUN apt-get update -y --fix-missing --no-install-recommends \
     sudo \
     curl \
     rsync \
+    openssh-client \
     && apt-get upgrade -y \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*