Update JUSH

diff --git a/externals/jush b/externals/jush
index 90baf7bffbc73aa5ff9e96c823da660d623c9dab..76ba0763113e8041e73c460e2da2ea1bb1a5cb5b 160000 (submodule)
--- a/externals/jush
+++ b/externals/jush
@@ -1 +1 @@
-Subproject commit 90baf7bffbc73aa5ff9e96c823da660d623c9dab
+Subproject commit 76ba0763113e8041e73c460e2da2ea1bb1a5cb5b