Static code analysis on xls branch

Validate:

• Pass all the tests
• Don't left dangling images
• Check containers with Tenable
• Validate Node.JS usage

Node.JS tested on https://git.unl.edu/unl-its/src/-/jobs/7672

Closes #1 (closed)

magento2-unit-test/latest/Dockerfile

 FROM centos:7
 
+ARG BUILD_DATE
+ARG VCS_REF
+ARG VERSION
+LABEL org.label-schema.build-date=$BUILD_DATE \
+      org.label-schema.name="Magento Unit Tester" \
+      org.label-schema.description="" \
+      org.label-schema.vcs-ref=$VCS_REF \
+      org.label-schema.vendor="University of Nebraska - Lincoln" \
+      org.label-schema.version=$VERSION \
+      org.label-schema.schema-version="1.0" \
+      maintainer="Alan Nelson <alan.nelson@nebraska.edu>"
+
+
 # Add additional REPOs
 RUN rpm -i https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm \
   && rpm -i https://rhel7.iuscommunity.org/ius-release.rpm