bootstrap: Use v4.1.3

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

diff --git a/src/bootstrap b/src/bootstrap
index a49f5cab6fb2e106113e5ab59fdcecc7f9349301..3b558734382ce58b51e5fc676453bfd53bba9201 160000 (submodule)
--- a/src/bootstrap
+++ b/src/bootstrap
@@ -1 +1 @@
-Subproject commit a49f5cab6fb2e106113e5ab59fdcecc7f9349301
+Subproject commit 3b558734382ce58b51e5fc676453bfd53bba9201