Repository: create-react-app
Issue: run `CI=true npm test`, result is not highlight!
Labels: needs triage,issue: bug report

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### Describe the bug

when I run shell:

```shell
$ node scripts/test.js
```

result can hightlight, ru:

![image](https://user-images.githubusercontent.com/8475373/118218715-98724e00-b4aa-11eb-9699-8179e4c6017f.png)


But when run this shell in :

```shell
$ CI=true node scripts/test.js --detectOpenHandles
```

result is not hightlight, ru:

![image](https://user-images.githubusercontent.com/8475373/118218812-cf486400-b4aa-11eb-9a55-9519379172f1.png)

### Did you try recovering your dependencies?

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### Which terms did you search for in User Guide?

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### Environment

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  Run the following command in your React app's folder in terminal.
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```shell
Environment Info:

  current version of create-react-app: 3.4.1
  running from /Users/xxx/.config/yarn/global/node_modules/create-react-app

  System:
    OS: macOS 11.2.3
    CPU: (8) x64 Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
  Binaries:
    Node: 16.1.0 - /usr/local/bin/node
    Yarn: 1.9.4 - /usr/local/bin/yarn
    npm: 7.11.2 - /usr/local/bin/npm
  Browsers:
    Chrome: 90.0.4430.212
    Firefox: Not Found
    Safari: 14.0.3
  npmPackages:
    react: ^17.0.2 => 17.0.2
    react-dom: ^17.0.2 => 17.0.2
    react-scripts: Not Found
  npmGlobalPackages:
    create-react-app: Not Found
```

### Steps to reproduce

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### Expected behavior

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### Actual behavior

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