ci: fix await fs.stat (#258)

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##### Checklist
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[x]. -->

- [ ] `npm test` passes
- [ ] tests and/or benchmarks are included
- [ ] documentation is changed or added
- [ ] commit message follows commit guidelines

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##### Description of change
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README.md

@@ -342,7 +342,7 @@ Generate code for @eggjs/tegg-dal-plugin
 egg-bin dal gen
 ```
 
-dal document please read [tegg doc](https://github.com/eggjs/tegg/tree/master/plugin/dal).
+Dal document please read [tegg doc](https://github.com/eggjs/tegg/tree/master/plugin/dal).
 
 ## License
 

test/lib/cmd/dal.test.js

@@ -35,7 +35,7 @@ describe('test/lib/cmd/dal.test.js', () => {
         'app/modules/dal/dal/structure/Foo.json',
         'app/modules/dal/dal/structure/Foo.sql',
       ]) {
-        assert.ok(fs.stat(path.join(cwd, file)));
+        assert.ok(await fs.stat(path.join(cwd, file)));
       }
     });
   });