🔧 Fix apt sources and add ca-certificates across Debian versions 🔧

- Add ca-certificates to PACK_LIST in all four Dockerfiles (10-13)
- Explicitly write apt sources.list for each Debian release (buster, bullseye, bookworm, trixie) with contrib and non-free components
- Remove conflicting sources.list.d/*.sources files before writing new sources
- Add Acquire::Check-Valid-Until false for buster archive to bypass expired release date check

Dockerfile.10
Dockerfile.11
Dockerfile.12
Dockerfile.13

Dockerfile.11

@@ -55,7 +55,7 @@ ARG PHP_SERVER
 ARG SHELL_OPTS
 ARG DEBIAN_FRONTEND
 
-ARG PACK_LIST="bash-completion git curl wget sudo unzip tini xz-utils iproute2 pinentry-curses bsd-mailx procps net-tools bsd-mailx postfix python3-icu python3-pip certbot jq "
+ARG PACK_LIST="bash-completion git curl wget sudo unzip tini xz-utils iproute2 pinentry-curses bsd-mailx procps net-tools bsd-mailx postfix python3-icu python3-pip certbot ca-certificates jq "
 
 ENV ENV=~/.profile
 ENV SHELL="/bin/sh"
@@ -75,6 +75,11 @@ RUN set -e; \
   echo "Setting up prerequisites"; \
   echo "$LANG UTF-8" >"/etc/locale.gen"; \
   echo 'export DEBIAN_FRONTEND="'${DEBIAN_FRONTEND}'"' >"/etc/profile.d/apt.sh" && chmod 755 "/etc/profile.d/apt.sh"; \
+  rm -f /etc/apt/sources.list.d/*.sources 2>/dev/null || true; \
+  printf '%s\n' \
+    "deb http://deb.debian.org/debian bullseye main contrib non-free" \
+    "deb http://deb.debian.org/debian bullseye-updates main contrib non-free" \
+    "deb http://security.debian.org/debian-security bullseye-security main contrib non-free" > /etc/apt/sources.list; \
   apt update && apt install -yy bash locales apt-utils python3-tz; \
   dpkg-reconfigure --frontend=noninteractive locales;update-locale LANG=$LANG; \
   update-alternatives --install /bin/sh sh /bin/bash 1