Update tox.ini to no interactive latex-mode and only use first image of animated gif

otc_metadata/templates/tox.ini.j2

@@ -122,9 +122,9 @@ commands =
   rm -rf {{ loc }}/build/pdf
   cp -r {toxinidir}/_templates {{ loc }}/source/_templates/
   sphinx-build -W --keep-going -b latex {{ loc }}/source {{ loc }}/build/pdf/
-  bash -c "for f in {{ loc }}/build/pdf/*.gif; do convert $f $\{f/%gif/png\}; done || true"
+  bash -c "for f in {{ loc }}/build/pdf/*.gif; do convert $f[0] $\{f/%gif/png\}; done || true"
   bash -c "for f in {{ loc }}/build/pdf/*.tex; do sed -iorig 's/\.gif//g' $f; done"
-  make -C {{ loc }}/build/pdf
+  make -C {{ loc }}/build/pdf LATEXMKOPTS="-interaction=nonstopmode"
   mkdir -p doc/build/pdf
   cp {{ loc }}/build/pdf/{{ service_type }}-{{ doc.type }}.pdf doc/build/pdf/
 {% endfor %}