chore(deps): update dependency tsup to v8.4.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
tsup (source)	8.2.4 -> 8.4.0

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Release Notes

egoist/tsup (tsup)

v8.4.0

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   🚀 Features

• Upgrade svelte and css compiler  -  by @​DaniAcu in https://github.com/egoist/tsup/issues/1288 (c3f32)

   🐞 Bug Fixes

• Upgrade esbuild to 0.25  -  by @​RobinTail in https://github.com/egoist/tsup/issues/1309 (89c47)

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v8.3.6

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   🐞 Bug Fixes

• Don't await sub-process of onSuccess  -  by @​laat in https://github.com/egoist/tsup/issues/1256 (314a6)

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v8.3.5

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   🐞 Bug Fixes

• Run experimentalDts only once  -  by @​aryaemami59 in https://github.com/egoist/tsup/issues/1236 (fddd4)

    View changes on GitHub

v8.3.4

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No significant changes

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v8.3.0

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Bug Fixes

• fix experimentalDts file cleaning and watching (#​1199) (76dc18b)

Features

• add support for cts and mts config files (#​1178) (ec811b3)
• add support for async injectStyle (#​1193) (f25a9db)

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