added curl to Dockerfile

Dockerfile

@@ -7,6 +7,7 @@ RUN apt update \
     && apt -y install \
         cron \
         tzdata \
+	curl \
     && rm -rf /var/lib/apt/lists/*
 
 RUN cp -r -f /usr/share/zoneinfo/Europe/Berlin /etc/localtime
@@ -18,4 +19,4 @@ COPY crontab /app/crontab
 RUN chmod +x /app/run.sh
 RUN chmod +x /app/wohn-hh-checker.sh
 
-CMD [ "/app/run.sh" ]
+CMD [ "/app/run.sh" ]