CHanged to restx in Dockerfile

atlas_server/uwsgi/Dockerfile

@@ -3,7 +3,7 @@ FROM python:3
 
 # Install python packages
 RUN pip3 install requests
-RUN pip3 install flask flask_restplus marshmallow
+RUN pip3 install flask flask-restx marshmallow
 RUN pip3 install pymongo
 RUN pip3 install uwsgi
 
@@ -18,4 +18,4 @@ RUN mkdir -p /uwsgi
 COPY uwsgi.ini /uwsgi/uwsgi.ini
 
 # Run uwsgi
-CMD [ "uwsgi", "--ini", "/uwsgi/uwsgi.ini"]
\ No newline at end of file
+CMD [ "uwsgi", "--ini", "/uwsgi/uwsgi.ini"]