fix(plugin-legacy): ensure to use the configuration of .browserslistrc

[anncwb]

fix #2476

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• Read the Pull Request Guidelines and follow the Commit Convention.
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What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

---

Description

Additional context

[fwh1990]

What is going on?

[Shinigami92]

@fwh1990 So we have a label review needed
If this is on a PR, someone of the team with write access in this repo need to come along and review it and needs to approve it (or request for changes)

If you want to ask more, feel free to come in the Vite Land Discord Server https://chat.vitejs.dev

We are also happy to invite further folks to our triage team to help us review more and more PRs in parallel 🙂
If you are interested you should nominate yourself here: #2601

[fwh1990]

Why close this?