pdm: add rsyslog to fix /dev/log Connection refused errors (#10018)

* fix(pdm): add rsyslog and convert pdm-test to setup_deb822_repo

- Install rsyslog to fix '/dev/log: Connection refused' errors
  (Debian 13 minimal containers don't have rsyslog by default)
- Convert pdm-test heredoc to use setup_deb822_repo with enabled=false

Requires: fix/setup-deb822-enabled-param branch for enabled parameter

* Update install/proxmox-datacenter-manager-install.sh

Co-authored-by: Tobias <96661824+CrazyWolf13@users.noreply.github.com>

---------

Co-authored-by: Slaviša Arežina <58952836+tremor021@users.noreply.github.com>
Co-authored-by: Tobias <96661824+CrazyWolf13@users.noreply.github.com>

install/proxmox-datacenter-manager-install.sh

@@ -13,6 +13,11 @@ setting_up_container
 network_check
 update_os
 
+msg_info "Installing Dependencies"
+$STD apt install -y rsyslog
+systemctl enable -q --now rsyslog
+msg_ok "Installed Dependencies"
+
 msg_info "Installing Proxmox Datacenter Manager"
 curl -fsSL https://enterprise.proxmox.com/debian/proxmox-archive-keyring-trixie.gpg -o /usr/share/keyrings/proxmox-archive-keyring.gpg
 setup_deb822_repo \
@@ -22,15 +27,15 @@ setup_deb822_repo \
   "trixie" \
   "pdm-no-subscription"
 
-cat <<EOF >/etc/apt/sources.list.d/pdm-test.sources
+setup_deb822_repo \
-Types: deb
+  "pdm-test" \
-URIs: http://download.proxmox.com/debian/pdm
+  "https://enterprise.proxmox.com/debian/proxmox-archive-keyring-trixie.gpg" \
-Suites: trixie
+  "http://download.proxmox.com/debian/pdm" \
-Components: pdm-test
+  "trixie" \
-Signed-By: /usr/share/keyrings/proxmox-archive-keyring.gpg
+  "pdm-test" \
-Enabled: false
+  "" \
-EOF
+  "false"
-$STD apt update
+
 DEBIAN_FRONTEND=noninteractive
 $STD apt -o Dpkg::Options::="--force-confdef" \
   -o Dpkg::Options::="--force-confold" \