Bump ctypes to 3.14 (#14137)

stdlib/ctypes/util.pyi

@@ -5,4 +5,7 @@ def find_library(name: str) -> str | None: ...
 if sys.platform == "win32":
     def find_msvcrt() -> str | None: ...
 
+if sys.version_info >= (3, 14):
+    def dllist() -> list[str]: ...
+
 def test() -> None: ...