Upgrade python version of server

Author: Bachibouzouk

task_queue/Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.7-slim
+FROM python:3.8-slim
 
 ARG mvs_version
 
@@ -18,6 +18,9 @@ RUN python -m pip install --upgrade pip
 RUN pip install -r /tmp/requirements.txt
 # install multi-vector-simulator's version pinned in docker-compose.yml file
 RUN pip install multi-vector-simulator==$MVS_VERSION
+RUN pip install pyomo==5.7.2
+RUN pip install importlib-metadata==4.13.0
+
 
 COPY . /queue