chore: add CODEOWNERS

[Boshen]

Summary

Setup CODEOWNERS for easier reviewer assignments.
@hardfist Can you assign these to the correct person, you can push to this branch.

Related issue (if exists)

Types of changes

• Docs change / Dependency upgrade
• Bug fix
• New feature / Improvement
• Refactoring
• Breaking change

Checklist

• I have added changeset via pnpm run changeset.
• I have added tests to cover my changes.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 1dd0fc0

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

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[IWANABETHATGUY]

@web-infra-dev/rspack

[h-a-n-a]

@web-infra-dev/rspack

[Boshen]

@web-infra-dev/rspack Can you double check and assign the node packages as well?

[Boshen]

@hardfist can you double check?