update docker

Dockerfile

@@ -1,11 +1,12 @@
 from python:3.8
 
 workdir /srv
-
+RUN apt-get update && apt-get install -y locales-all && apt-get clean && rm -rf /var/lib/apt/lists/*
 RUN pip3 install setuptools_scm
 
 RUN pip3 install elasticsearch
 RUN pip3 install scrapy
+RUN pip3 install python-dateutil
 COPY requirements.txt .
 RUN pip3 install -r requirements.txt
 COPY scrapy.cfg .