QPR-12100 add lxml

Author: damienbarker

Docker/Dockerfile-Test

@@ -5,7 +5,7 @@ RUN apt-get update \
   && DEBIAN_FRONTEND=noninteractive apt-get install -y dos2unix python3 python3-pip libxml2-utils xsltproc \
   && apt-get clean \
   && rm -rf /var/lib/apt/lists/* \
-  && pip3 install matplotlib pandas nose nose_xunitmp datacompy jsondiff
+  && pip3 install matplotlib pandas nose nose_xunitmp datacompy jsondiff lxml
 
 CMD bash