fix(deps): update dependency unbuild to v3

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
unbuild	^2.0.0 -> ^3.0.0

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Release Notes

unjs/unbuild (unbuild)

v3.0.1

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compare changes

🩹 Fixes

• rollup: De-default default export from stub (#​455)

🏡 Chore

• Update changeloge.md (577b841)

❤️ Contributors

• Daniel Roe (@​danielroe)
• Pooya Parsa (@​pi0)

v3.0.0

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See github release notes.

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[what-the-diff]

PR Summary

• Update of 'unbuild' Package Version
  The version of the 'unbuild' package, a central tool in our software, has been upgraded from '2.0.0' to '3.0.0'. This means our system is now using a newer and possibly more efficient version of the 'unbuild' package.