DONE: bsas integration first stage

docker/php/Dockerfile

@@ -2,7 +2,14 @@ FROM php:7.4-fpm AS base
 
 WORKDIR /var/www/html
 
-RUN apt-get update \
+# php:7.4-fpm is Debian 11 (bullseye); after LTS end, packages live on archive.debian.org
+RUN sed -i \
+  -e 's|http://deb.debian.org/debian|http://archive.debian.org/debian|g' \
+  -e 's|http://security.debian.org/debian-security|http://archive.debian.org/debian-security|g' \
+  -e 's|http://deb.debian.org/debian-security|http://archive.debian.org/debian-security|g' \
+  /etc/apt/sources.list \
+  && printf 'Acquire::Check-Valid-Until "false";\n' > /etc/apt/apt.conf.d/99no-check-valid-until \
+  && apt-get update \
   && apt-get install -y --no-install-recommends \
   git \
   pkg-config \