Updates downloaders: 4665b8f Fix: postfixadmin-dl: update to new config convention

diff --git a/downloaders b/downloaders
index bd20e1e27be3e206fdda338ec5d05b82d635f4b1..4665b8fc8d55d1972338fc2fcc5d614b3602c173 160000 (submodule)
--- a/downloaders
+++ b/downloaders
@@ -1 +1 @@
-Subproject commit bd20e1e27be3e206fdda338ec5d05b82d635f4b1
+Subproject commit 4665b8fc8d55d1972338fc2fcc5d614b3602c173