fix: remove binutils will also remove gcc (#1100)

Dockerfile

@@ -7,7 +7,6 @@ COPY ./fonts/sarasa-mono-sc-regular.ttf /usr/share/fonts/
 RUN apt-get update && \
     apt install --no-install-recommends xvfb binutils build-essential qtbase5-dev wkhtmltopdf ffmpeg -yq && \
     (strip --remove-section=.note.ABI-tag /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 || true) && \
-    apt-get remove --purge -yq binutils && \
     apt-get clean && \
     apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false && \
     rm -rf /var/lib/apt/lists/*
@@ -18,6 +17,8 @@ WORKDIR /app
 COPY requirements.txt /app
 RUN pip install --no-cache-dir -r requirements.txt && pip cache purge
 
+RUN apt-get remove --purge -yq binutils
+
 COPY . /app
 
 CMD ["/bin/bash", "/app/docker/start.sh"]