Update to Node 24

Closes gh-19689

Signed-off-by: Josh Cummings <3627351+jzheaux@users.noreply.github.com>

javascript/package-lock.json

@@ -23,7 +23,7 @@
         "sinon": "^18.0.0"
       },
       "engines": {
-        "node": ">=20.0.0"
+        "node": ">=24.0.0"
       }
     },
     "node_modules/@esbuild/aix-ppc64": {

javascript/package.json

@@ -13,7 +13,7 @@
     "url": "https://github.com/spring-projects/spring-security/issues"
   },
   "engines": {
-    "node": ">=20.0.0"
+    "node": ">=24.0.0"
   },
   "scripts": {
     "test": "mocha",

javascript/spring-security-javascript.gradle

@@ -23,7 +23,7 @@ plugins {
 
 node {
     download = true
-    version = '20.17.0'
+    version = '24.21.0'
 }
 
 tasks.named('check') {

javascript/test/bootstrap.js

@@ -20,3 +20,7 @@ import chai from "chai";
 // By default, chai truncates at 40 characters, making it difficult to
 // compare e.g. error messages
 chai.config.truncateThreshold = 0;
+
+// Node defines `navigator` as a getter-only global, which the tests replace with
+// a stub. Redefine it as a writable property so that assignment works.
+Object.defineProperty(globalThis, "navigator", { value: undefined, writable: true, configurable: true });