Added missing python dependency

Dockerfile

@@ -10,6 +10,9 @@ RUN apt-get install -y git
 RUN apt-get install -y build-essential
 RUN apt-get install -y cppcheck
 
+# Install python dependensices
+RUN python3 -m pip install packaging
+
 # Install aqt
 RUN python3 -m pip install aqtinstall