Update Dockerfile

Dockerfile

@@ -67,7 +67,7 @@ RUN curl -sL https://deb.nodesource.com/setup_18.x  | bash - && \
 WORKDIR /app
 
 # Create a non-root user and switch to it
-RUN adduser -u 0 -o -m -d /home/user -s /bin/bash user
+RUN useradd -u 0 -o -m -d /home/user -s /bin/bash user
 RUN echo 'user:senha' | chpasswd
 RUN chown -R user:user /app