Dockerfile in rubypitaya-2.20.0

- old
+ new

@@ -3,9 +3,10 @@
 ENV LANG=C.UTF-8
 ENV LC_ALL=C.UTF-8
 
 RUN apt update && \
     apt install -y --no-install-recommends \
+    git \
     netcat \
     libpq-dev \
     build-essential \
     && rm -rf /var/lib/apt/lists/*
 