use requirements for docker build

Dockerfile

@@ -1,25 +1,10 @@
-#
-FROM python:3.10 as requirements-stage
-
-#
-WORKDIR /tmp
-
-#
-RUN pip install poetry -i https://pypi.tuna.tsinghua.edu.cn/simple
-#
-COPY ./pyproject.toml ./poetry.lock* /tmp/
-
-#
-RUN poetry export -f requirements.txt --output requirements.txt --without-hashes
-
-#
 FROM python:3.10
 
 #
 WORKDIR /code
 
 #
-COPY --from=requirements-stage /tmp/requirements.txt /code/requirements.txt
+COPY ./requirements.txt /code/requirements.txt
 
 #
 RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple