ulab: update to 1.6.0

jepler · jepler · commit 09bf58407fc0 · 2021-01-04T12:50:08.000-06:00
This fixes several problems I encountered.
diff --git a/extmod/ulab b/extmod/ulab
@@ -1 +1 @@
-Subproject commit aa7e741530df471d206a4a321823a37a913a0eb8
+Subproject commit c4b06e419f3d515478b05bb8ce03ebdb29cddec4
