update submodule to v3.0.1

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

diff --git a/src b/src
index 5cb2ff57f8b02219cf9e1b1562b0a4f3dd39b769..28d49141f8d1852f89847b10d35042ed6a9392bf 160000 (submodule)
--- a/src
+++ b/src
@@ -1 +1 @@
-Subproject commit 5cb2ff57f8b02219cf9e1b1562b0a4f3dd39b769
+Subproject commit 28d49141f8d1852f89847b10d35042ed6a9392bf