Update Dockerfile to include procps to build dependencies (#1146)

Update Dockerfile to include procps to build dependencies

Author: adamjtaylor

Dockerfile

@@ -4,6 +4,7 @@ RUN echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selectio
 RUN apt-get update \
     && apt-get install --no-install-recommends -y \
     gcc \
+    procps \
     python3-dev \
     python3-setuptools \
     python3-pip \