Update to latexml 0.8.5

.CI/Jenkinsfile

@@ -18,7 +18,7 @@ pipeline {
   stage('build') {
     agent {
       docker {
-        image 'modelicaspec/latexml:20200804'
+        image 'modelicaspec/latexml:20201119'
         label 'linux'
         alwaysPull true
       }

.CI/latexml/Dockerfile.incremental

@@ -1,5 +1,10 @@
 FROM modelicaspec/latexml:20200415
 
-RUN tlmgr update --self \
+RUN apt-get update \
+ && export DEBIAN_FRONTEND=noninteractive \
+ && apt-get install -qy perl ca-certificates make libxslt1.1 libxslt-dev libxml2 libxml2-dev gcc wget curl git unzip cpanminus --no-install-recommends --no-install-suggests \
+ && tlmgr update --self \
  && tlmgr install cleveref caption \
+ && cpanm LaTeXML \
+ && apt-get autoremove -qy make gcc curl wget git cpanminus libxml2-dev libxslt-dev \
  && apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/ /root/.cpanm/work*