chore: update Dockerfile

Dockerfile

@@ -1,13 +1,15 @@
 FROM python:3.10-slim
 WORKDIR /dmibot/
 
+# web app dependencies & build
+RUN  apt-get update && apt-get install -y curl
+RUN curl -fsSL https://deb.nodesource.com/setup_20.x | bash - && apt-get install -y nodejs
+
 COPY requirements.txt .
 RUN pip3 install -r requirements.txt
 
-# web app dependencies & build
-RUN curl -fsSL https://deb.nodesource.com/setup_19.x | bash - && apt-get install -y nodejs
-RUN mkdir -p webapp/dist; cd webapp/; npm install; npx parcel build index.html; cd ..
-
 COPY . .
 
+RUN mkdir -p webapp/dist; cd webapp/; npm install; npx parcel build index.html; cd ..
+
 ENTRYPOINT ["python3", "main.py"]