Update Dockerfile (argoproj-labs#46)

Signed-off-by: Corey Caverly <[email protected]>

Dockerfile

@@ -1,15 +1,17 @@
-FROM python:3.7-stretch AS builder
+FROM python:3.9-bookworm AS builder
 
 USER root
 RUN mkdir /rep
 COPY . /rep
 WORKDIR /rep
-RUN apt-get update && apt-get install -y python3 python-pip build-essential python-setuptools
+RUN apt-get update && apt-get install -y python3 python3-pip build-essential
 RUN pip3 wheel . --wheel-dir=/rep/wheels
+RUN pip3 install setuptools
 
-FROM python:3.7-stretch
+FROM python:3.9-bookworm
 USER root
-RUN apt-get update && apt-get install -y --no-install-recommends python3 python-pip python-setuptools && apt-get clean && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install -y --no-install-recommends python3 python3-pip && apt-get clean && rm -rf /var/lib/apt/lists/*
+RUN pip3 install setuptools
 
 COPY --from=builder /rep /rep
 COPY docker-entrypoint.sh /docker-entrypoint.sh