Build debs for bookworm (#10612)

changelog.d/10612.misc

@@ -0,0 +1 @@
+Build Debian packages for Debian 12 (Bookworm).

scripts-dev/build_debian_packages

@@ -20,8 +20,9 @@ from concurrent.futures import ThreadPoolExecutor
 from typing import Optional, Sequence
 
 DISTS = (
-    "debian:buster",
+    "debian:buster",  # oldstable: EOL 2022-08
     "debian:bullseye",
+    "debian:bookworm",
     "debian:sid",
     "ubuntu:bionic",  # 18.04 LTS (our EOL forced by Py36 on 2021-12-23)
     "ubuntu:focal",  # 20.04 LTS (our EOL forced by Py38 on 2024-10-14)