also upgradeing pystencils automatically

jobscript/build.sh

@@ -19,7 +19,7 @@ then
     python3 -m venv $PYTHON_VENV
 fi
 source $PYTHON_VENV/bin/activate
-pip install --upgrade pip setuptools wheel jinja2 py-cpuinfo lbmpy
+pip install --upgrade pip setuptools wheel jinja2 py-cpuinfo lbmpy pystencils
 pip list
 
 mkdir -p ${BUILD_DIR}