kvm: default iso is debian version 12.1.0

component/qemu-kvm/buildout.cfg

@@ -104,12 +104,17 @@ md5sum = 9d7b9cc850464d60ac174787c53e8f3f
 
 [debian-amd64-bullseye-netinst.iso]
 <= debian-amd64-netinst-base
-version = 11.1.0
-md5sum = b710c178eb434d79ce40ce703d30a5f0
+version = 11.7.0
+md5sum = b33775a9ab6eae784b6da9f31be48be3
+
+[debian-amd64-bookworm-netinst.iso]
+<= debian-amd64-netinst-base
+version = 12.1.0
+md5sum = 8d77d1b0bcfef29e4d56dc0fbe23de15
 alternate-url = https://cdimage.debian.org/cdimage/release/current/${:arch}/iso-cd/${:filename}
 
 [debian-amd64-netinst.iso]
-<= debian-amd64-bullseye-netinst.iso
+<= debian-amd64-bookworm-netinst.iso
 
 [debian-amd64-testing-netinst.iso]
 <= debian-amd64-netinst-base