fix: run test error

[y1d7ng]

Description

This commit caused an error in run test.

Additional context

The error log is:

The following dependencies are imported but could not be resolved:

vuex (imported by /home/runner/work/vite/vite/temp/optimize-deps/index.html)

In the current situation, optimize-deps's vuex will be installed in the current node_modules. When run test, the playground item will be copied to create the temp in the top directory, but the node_modules will not be copied over. Changing the vue version to 3.2.0 will make vuex installed in the top node_modules.

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What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

Before submitting the PR, please make sure you do the following

• Read the Contributing Guidelines.
• Read the Pull Request Guidelines and follow the Commit Convention.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• Ideally, include relevant tests that fail without this PR but pass with it.