Update Dockerfile

Dockerfile

@@ -2,14 +2,14 @@ FROM python:3.6.12
 
 LABEL maintainer "Patrick Chabrier <patrick.chabrier@inrae.fr>"
 
+ENV DEBIAN_FRONTEND noninteractive
+
 RUN wget -O- http://neuro.debian.net/lists/xenial.us-ca.full | tee /etc/apt/sources.list.d/neurodebian.sources.list \
     && apt-key adv --recv-keys --keyserver hkp://pool.sks-keyservers.net:80 0xA5D32F012649A5A9 \
     && apt-get update
 
 RUN apt-get install -y singularity-container
 
-ENV DEBIAN_FRONTEND noninteractive
-
 RUN pip install git+https://github.com/galaxyproject/planemo.git@0.74.1
 
 ENV GALAXY_TEST_UPLOAD_ASYNC false