Update manifold version to 3.2.1 (#17039)

Co-authored-by: David Catuhe <[email protected]>

Author: deltakosh

packages/dev/core/src/Meshes/csg2.ts

@@ -467,7 +467,7 @@ export function IsCSG2Ready() {
  */
 export async function InitializeCSG2Async(options?: Partial<ICSG2Options>) {
     const localOptions = {
-        manifoldUrl: "https://unpkg.com/manifold-3d@3.1.1",
+        manifoldUrl: "https://unpkg.com/manifold-3d@3.2.1",
         ...options,
     };