feat: add libmodbus (#14)

dockerfiles/focal.docker

@@ -45,6 +45,7 @@ RUN apt-get update && \
         libmuparser-dev \
         libmbedtls-dev \
         libyajl-dev \
+        libmodbus-dev \
         nlohmann-json3-dev && \
     useradd -u 30996 msk_jenkins && \
     ln -sfn /usr/lib/x86_64-linux-gnu/libzmq.so.5 /usr/lib/x86_64-linux-gnu/libzmq.so.3 && \

dockerfiles/tumbleweed.docker

@@ -31,6 +31,7 @@ RUN zypper refresh && \
     zypper install -y mbedtls-devel libopenssl-devel && \
     zypper install -y rpcbind libtirpc-devel && \
     zypper install -y libyajl-devel libyajl-devel-static && \
+    zypper install -y libmodbus-devel && \
     zypper install -y nlohmann_json-devel gawk && \
     bash "-c" "echo \"Defaults set_home\" >> /etc/sudoers" && \
     useradd -u 30996 msk_jenkins && \