update sources to Ubuntu-5.15.0-16.16

(generated with debian/scripts/import-upstream-tag)

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

diff --git a/submodules/ubuntu-jammy b/submodules/ubuntu-jammy
index 401befb9c1c6116168fe6fdf36ec9c9d28771c57..66ff5e7494dc6868443daffc10c9940d2a5e299c 160000 (submodule)
--- a/submodules/ubuntu-jammy
+++ b/submodules/ubuntu-jammy
@@ -1 +1 @@
-Subproject commit 401befb9c1c6116168fe6fdf36ec9c9d28771c57
+Subproject commit 66ff5e7494dc6868443daffc10c9940d2a5e299c