Add deploy to github container registry

Author: adribaeza

backend/Dockerfile

@@ -9,7 +9,7 @@ COPY ./backend/requirements.txt /app/requirements.txt
 RUN pip install --no-cache-dir -r requirements.txt
 
 # Copia el código del backend
-COPY ./backend /app
+COPY ./backend/app
 
 # Expone el puerto 8000
 EXPOSE 8000