feat: use lsb_release for setting custom repo

Author: foosel

scripts/01-add-octoprint-apt-repo

@@ -7,5 +7,5 @@ source /common.sh
 install_cleanup_trap
 
 curl -s --compressed "https://apt.octoprint.org/octoprint.gpg.key" | gpg --dearmor > /etc/apt/trusted.gpg.d/octoprint.gpg
-curl -s --compressed -o /etc/apt/sources.list.d/octoprint-rpi.list "https://apt.octoprint.org/octoprint-bullseye-rpi.list"
+echo "deb https://apt.octoprint.org/debian $(lsb_release -cs) rpi" > /etc/apt/sources.list.d/octoprint-rpi.list
 apt-get update