chore(compartment-mapper): add tests for import() in ESM

This adds missing tests to assert support of `import()` in ES module sources.

As expected, it does not work within archives.

Author: boneskull

packages/compartment-mapper/test/dynamic-import-esm.test.js

@@ -0,0 +1,24 @@
+import 'ses';
+
+import test from 'ava';
+import { scaffold } from './scaffold.js';
+
+const fixture = new URL(
+  'fixtures-dynamic-import-esm/node_modules/app/index.js',
+  import.meta.url,
+).toString();
+
+scaffold(
+  'fixtures-dynamic-import-esm',
+  test,
+  fixture,
+  async (t, { namespace }) => {
+    // @ts-expect-error - untyped
+    const foo = await namespace.getFoo();
+    t.is(foo, 'foo');
+  },
+  1,
+  {
+    knownArchiveFailure: true,
+  },
+);