Update debian dev dependencies

Author: bording

Dockerfile.debian.9-x64

@@ -2,6 +2,6 @@ FROM debian:9
 WORKDIR /nativebinaries
 COPY . /nativebinaries/
 
-# RUN yum -y install gcc openssl cmake
+RUN apt update && apt -y install cmake gcc libcurl4-openssl-dev libssl-dev pkg-config zlib1g-dev
 
 CMD ["/bin/bash", "-c", "./build.libgit2.sh"]