Update default WASM_BUILD_URL to pinned version on the openscad file server

Author: t-paul

Makefile

@@ -1,5 +1,5 @@
 # Pin WASM build to a version known to work
-WASM_BUILD_URL=https://output.circle-artifacts.com/output/job/4e9c7361-c5f2-46c8-a7ec-dc6ac1c6790a/artifacts/0/wasm/OpenSCAD-2024.12.23.wasm21824_PR5523-WebAssembly-web.zip
+WASM_BUILD_URL=https://files.openscad.org/playground/OpenSCAD-2025.03.25.wasm24456-WebAssembly-web.zip
 # WASM_SNAPSHOT_JS_URL=https://files.openscad.org/snapshots/.snapshot_wasm.js
 # WASM_BUILD_URL=$(shell curl ${WASM_SNAPSHOT_JS_URL} 2>/dev/null | grep https | sed -E "s/.*(https:[^']+)'.*/\1/" )