fix: trying to reduce docker image size further

Author: builder555

Dockerfile

@@ -9,8 +9,8 @@ WORKDIR /app
 COPY . .
 
 RUN apk update \
-    && apk add --no-cache cronie firefox \
-    && python -m pip install beautifulsoup4 requests python-telegram-bot selenium \
+    && apk add --no-cache cronie firefox-esr \
+    && python -m pip install --no-cache-dir beautifulsoup4 requests python-telegram-bot selenium \
     && mkdir -p /app/app/db/data
 
 RUN echo "0 */4 * * * . /etc/environment; cd /app && /usr/local/bin/python main.py >> /tmp/pricelog.txt 2>&1" | crontab -