fix(nodejs): register import in the middle for nodejs24.x runtime

Author: wpessers

nodejs/packages/layer/src/loader.mjs

@@ -76,7 +76,15 @@ export function registerLoader() {
   }
 }
 
-if (_isHandlerAnESModule()) {
+function _isRuntimeUsingESMImports() {
+  const runtimeVersion = process.env.AWS_EXECUTION_ENV;
+  if (runtimeVersion === 'AWS_Lambda_nodejs24.x') {
+    return true;
+  }
+  return false;
+}
+
+if (_isHandlerAnESModule() || _isRuntimeUsingESMImports) {
   /*
   We could activate ESM loader hook of the "import-in-the-middle" library,
   - by "--loader=import-in-the-middle/hook.mjs" Node CLI option, but "--loader" option has been deprecated