chore(deps): update dependency tsdown to v0.15.9 (#3011)

This PR contains the following updates:

| Package | Change | Age | Confidence |
|---|---|---|---|
| [tsdown](https://redirect.github.com/rolldown/tsdown) | [`0.15.8` ->
`0.15.9`](https://renovatebot.com/diffs/npm/tsdown/0.15.8/0.15.9) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/tsdown/0.15.9?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/tsdown/0.15.8/0.15.9?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>rolldown/tsdown (tsdown)</summary>

###
[`v0.15.9`](https://redirect.github.com/rolldown/tsdown/releases/tag/v0.15.9)

[Compare
Source](https://redirect.github.com/rolldown/tsdown/compare/v0.15.8...v0.15.9)

#####    🐞 Bug Fixes

- Update rolldown and migrate from the deprecated API  -  by
[@&#8203;ocavue](https://redirect.github.com/ocavue) in
[#&#8203;552](https://redirect.github.com/rolldown/tsdown/issues/552)
[<samp>(0aedb)</samp>](https://redirect.github.com/rolldown/tsdown/commit/0aedb13)
- Pin rolldown version  -  by
[@&#8203;ocavue](https://redirect.github.com/ocavue) in
[#&#8203;553](https://redirect.github.com/rolldown/tsdown/issues/553)
[<samp>(7752e)</samp>](https://redirect.github.com/rolldown/tsdown/commit/7752efc)

#####     [View changes on
GitHub](https://redirect.github.com/rolldown/tsdown/compare/v0.15.8...v0.15.9)

</details>

---

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---

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---

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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Anna Bocharova <[email protected]>

Author: renovate[bot]