Merge pull request #12 from shibaobun/attempt-fix-docker

i promise this actually fixes the docker build

Dockerfile

@@ -1,10 +1,17 @@
 FROM python:3-alpine
 
-RUN apk add --no-cache py3-pip py3-setuptools py3-distutils-extra
+RUN apk add --no-cache \
+  py3-pip \
+  py3-setuptools \
+  py3-distutils-extra \
+  git \
+  gcc \
+  libc-dev
 
 WORKDIR /usr/src/app
 
 COPY requirements.txt ./
+RUN pip install --upgrade pip
 RUN pip install --no-cache-dir -r requirements.txt
 RUN pip install git+https://github.com/yupix/Mi.py.git@v3.3.0