update python alpine

Signed-off-by: Masaru Hoshi <[email protected]>

py-build/Dockerfile

@@ -50,13 +50,13 @@ RUN wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/$GLIBC/g
   && ln -s /lib/libc.musl-x86_64.so.1 /usr/glibc-compat/lib \
   && ln -s /usr/lib/libgcc_s.so.1 /usr/glibc-compat/lib
 
-FROM python:3.8.3-alpine3.12 AS pypackages
+FROM python:3.9.18-alpine3.19 AS pypackages
 
 COPY requirements.txt .
 RUN pip3 install -r requirements.txt --break-system-packages
 RUN rm requirements.txt
 
-FROM python:3.8.3-alpine3.12 AS build
+FROM python:3.9.18-alpine3.19 AS build
 
 COPY --from=gomplate /gomplate /bin/gomplate
 COPY --from=docker /usr/local/bin/docker /bin/docker