use python3.13 as python3.8 it's no longer supported

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.8-alpine as compile
+FROM python:3.13-alpine as compile
 WORKDIR /opt
 RUN apk add --no-cache git gcc musl-dev python3-dev libffi-dev openssl-dev cargo
 RUN python3 -m pip install virtualenv
@@ -7,7 +7,7 @@ ENV PATH="/opt/venv/bin:$PATH"
 RUN git clone --depth 1 https://github.com/fortra/impacket.git
 RUN python3 -m pip install impacket/
 
-FROM python:3.8-alpine
+FROM python:3.13-alpine
 COPY --from=compile /opt/venv /opt/venv
 ENV PATH="/opt/venv/bin:$PATH"
-ENTRYPOINT ["/bin/sh"]
+ENTRYPOINT ["/bin/sh"]