debian: set compat level to 10

Related: OS#5958
Change-Id: I6ee4aace6bf7c246338408c41f790189d75d5488
diff --git a/debian/compat b/debian/compat
index ec63514..f599e28 100644
--- a/debian/compat
+++ b/debian/compat
@@ -1 +1 @@
-9
+10