update nim-ffi vendor

Ivansete-status · Ivansete-status · commit 52dea0971e15 · 2025-12-11T17:28:27.000+01:00
diff --git a/vendor/nim-ffi b/vendor/nim-ffi
@@ -1 +1 @@
-Subproject commit b974eab39cfb96a442af8ea448c02ef6b910bf1f
+Subproject commit 75251fb721f262a6ce39b895c15eb2bbf0aff606
