update sources to Ubuntu-5.4.0-18.22

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

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

diff --git a/submodules/ubuntu-focal b/submodules/ubuntu-focal
index f8a0e63a9ba99fa0606bc8153fc9cec6ab5c931f..93dfa5b8e12fed29933f3451db44d88c0e4b5aed 160000 (submodule)
--- a/submodules/ubuntu-focal
+++ b/submodules/ubuntu-focal
@@ -1 +1 @@
-Subproject commit f8a0e63a9ba99fa0606bc8153fc9cec6ab5c931f
+Subproject commit 93dfa5b8e12fed29933f3451db44d88c0e4b5aed