Await async getAnnotations() in test

The test was not awaiting the Promise returned by the async
getAnnotations() method.  This passed on Deno by coincidence,
but failed on Node.js because its test runner attaches internal
AsyncLocalStorage symbols to Promise objects, causing
Object.getOwnPropertySymbols() to return 2 instead of 0.

Author: dahlia

packages/config/src/index.test.ts

@@ -34,13 +34,13 @@ describe("createConfigContext", () => {
     assert.equal(typeof context.getAnnotations, "function");
   });
 
-  test("returns empty annotations when called without parsed result", () => {
+  test("returns empty annotations when called without parsed result", async () => {
     const schema = z.object({
       host: z.string(),
     });
 
     const context = createConfigContext({ schema });
-    const annotations = context.getAnnotations();
+    const annotations = await context.getAnnotations();
 
     assert.ok(annotations);
     assert.deepEqual(Object.getOwnPropertySymbols(annotations).length, 0);