chore: bump upstream

lmichaelis · lmichaelis · commit e9903ff0a710 · 2026-01-17T08:14:15.000+01:00
diff --git a/vendor/ZenKit b/vendor/ZenKit
@@ -1 +1 @@
-Subproject commit 39af30efc9756295dee8e9e69ca48a2054916b2f
+Subproject commit 475bd14f02de6542cbb31d020037966653963e81
