sync typeshed (#9064)

JelleZijlstra · web-flow · commit 650596a628b7 · 2020-06-28T12:25:49.000-07:00
Prepare for merge dance on python/typeshed#4258
diff --git a/mypy/typeshed b/mypy/typeshed
@@ -1 +1 @@
-Subproject commit df6136c4ac0bd0751699a7eeeff36e7486a90254
+Subproject commit 0dd3258ed2e8e5d16bc8575cddb91d66fae46389
