ignoreDeadLinks doesn't work

[jackdotink]

Describe the bug

When I enable the ignoreDeadLinks option in /docs/.vitepress/config.js, yarn docs:build still fails with the reason being One or more pages contain dead links.

Reproduction

Create a new vitepress project.
In /docs/.vitepress/config.js:

export default {
    ignoreDeadLinks: true,
    title: "test",
    description: "test stuff"
}

In /docs/api/index.md:

[test](./test)

Expected behavior

It is expected that the build process will succeed, because it should ignoreDeadLinks instead of failing because of them.

System Info

System:
    OS: Windows 10 10.0.19044
    CPU: (12) x64 Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz       
    Memory: 6.63 GB / 15.93 GB
  Binaries:
    Node: 18.5.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.22.19 - C:\Program Files\nodejs\yarn.CMD
    npm: 8.15.0 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Edge: Spartan (44.19041.1266.0), Chromium (103.0.1264.71)    
    Internet Explorer: 11.0.19041.1566
  npmPackages:
    vitepress: ^1.0.0-alpha.4 => 1.0.0-alpha.4

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.

[cy920820]

It'll be there in alpha-5.