Update upickle to the latest macro API

anatoliykmetyuk · anatoliykmetyuk · commit 03bc0e2912d6 · 2020-09-25T13:17:01.000+02:00
diff --git a/community-build/community-projects/upickle b/community-build/community-projects/upickle
@@ -1 +1 @@
-Subproject commit f168d2a4c5c2e7573ce5616799e5ee483f613c32
+Subproject commit e8f0568acb7312df815b5ccc236bb22129f82ee1
