fix odin

langs/odin/Dockerfile

@@ -4,4 +4,5 @@ RUN apt-get install libxml2 -y
 RUN apt-get install zlib1g -y
 RUN apt-get install libffi8 -y
 RUN apt-get install libtinfo6 -y
-RUN apt-get install libstdc++6 -y
+RUN apt-get install libstdc++6 -y
+RUN apt-get install clang -y