Add 'experimental-specifier-resolution' flag to NPM options in ESM module override test

Author: jayaddison

src/test/index.spec.ts

@@ -1891,7 +1891,14 @@ test.suite('ts-node', (test) => {
 
     test('moduleTypes can override module type to CJS in an ESM loader project', async () => {
       const { err, stderr, stdout } = await exec(
-        `${cmd} ./module-types/test.esm.js`
+        // TODO: Is the experimental-specified-resolution flag required here, or is there a better approach?
+        `${cmd} ./module-types/test.esm.js`,
+        {
+          env: {
+            ...process.env,
+            NODE_OPTIONS: `--experimental-specifier-resolution=node`,
+          },
+        }
       );
       expect(err).to.equal(null);
     });