test_runner: expose lcov reporter as newable function

Fixes: nodejs#52385
Ref: nodejs#49184

lib/test/reporters.js

@@ -50,7 +50,7 @@ ObjectDefineProperties(module.exports, {
     __proto__: null,
     configurable: true,
     enumerable: true,
-    get() {
+    value: function value() {
       lcov ??= require('internal/test_runner/reporter/lcov');
       return ReflectConstruct(lcov, arguments);
     },