[tsgen] Use node16 resolution for tsgen CommonJS test (#26896)

Update the CommonJS test case in `test_embind_tsgen_end_to_end` to use
`node16` for `--module` and `--moduleResolution`.

This fixes the TS5107 compiler error caused by the deprecation of the
legacy `node10` resolution strategy in modern versions of TypeScript.

Because there is no `type: "module"` specified in the package.json of
the test environment, `node16` resolution continues to treat and
generate files as CommonJS, preserving the intent of the test.

Author: brendandahl

test/test_other.py

@@ -3556,7 +3556,9 @@ def test_jspi_async_function(self):
 
   @requires_dev_dependency('typescript')
   @parameterized({
-    'commonjs': [['-sMODULARIZE'], ['--module', 'commonjs', '--moduleResolution', 'node']],
+    # Use `node16` to avoid the deprecated `node` moduleResolution in TS 6.0+. Since there is no
+    # `type: "module"` in package.json, this still tests CommonJS.
+    'commonjs': [['-sMODULARIZE'], ['--module', 'node16', '--moduleResolution', 'node16']],
     'esm': [['-sEXPORT_ES6'], ['--module', 'NodeNext', '--moduleResolution', 'nodenext']],
     'esm_with_jsgen': [['-sEXPORT_ES6', '-sEMBIND_AOT'], ['--module', 'NodeNext', '--moduleResolution', 'nodenext']],
   })