jenkins_job_health.html: include bookworm jobs, remove stretch ones

Signed-off-by: Holger Levsen <holger@layer-acht.org>

bin/maintenance.sh

 #!/bin/bash
 
-# Copyright 2012-2021 Holger Levsen <holger@layer-acht.org>
+# Copyright 2012-2022 Holger Levsen <holger@layer-acht.org>
 # released under the GPLv2
 
 DEBUG=false
@@ -182,9 +182,9 @@ build_jenkins_job_health_page() {
 		"edu-packages"
 		"haskell"
 		"chroot-installation_sid"
+		"chroot-installation_bookworm"
 		"chroot-installation_bullseye"
 		"chroot-installation_buster"
-		"chroot-installation_stretch"
 		"d-i_overview"
 		"d-i_manual"
 		"d-i_build"