[Docker] switch to deb-archive since stretch moved

Dockerfile

@@ -5,13 +5,12 @@ LABEL maintainer="David Baumgold <[email protected]>"
 COPY entrypoint.sh /entrypoint.sh
 
 # Stretch has been moved to archive.debian.org: https://lists.debian.org/debian-devel-announce/2023/03/msg00006.html
-RUN echo "deb http://archive.debian.org/debian stretch main" > /etc/apt/sources.list
+RUN echo "deb http://archive.debian.org/debian-archive/debian/ stretch main" > /etc/apt/sources.list
+RUN echo "deb http://archive.debian.org/debian-security/ stretch/updates main" >> /etc/apt/sources.list
 RUN apt-get update
 
 # Install the `dpkg-buildpackage` command
 RUN apt-get install --yes build-essential debhelper devscripts
-# Install the `curl` command
-RUN apt-get install --yes --allow-downgrades libnettle6=3.3-1+b2 libhogweed4 libgnutls30 curl
 
 # Install `dh-virtualenv` 1.2
 RUN curl -o /tmp/dh-virtualenv.deb https://download.nylas.com/gha-deps/dh-virtualenv_1.2.1-1~stretch_all.deb

entrypoint.sh

@@ -1,5 +1,4 @@
 #!/bin/sh
-echo "deb http://archive.debian.org/debian stretch main" > /etc/apt/sources.list
 set -e
 # Set the install command to be used by mk-build-deps (use --yes for non-interactive)
 install_tool="apt-get -o Debug::pkgProblemResolver=yes --no-install-recommends --yes"