chore: update dependency @swc/core to v1.7.21 (#325)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [@swc/core](https://swc.rs)
([source](https://redirect.github.com/swc-project/swc)) | [`1.7.18` ->
`1.7.21`](https://renovatebot.com/diffs/npm/@swc%2fcore/1.7.18/1.7.21) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/@swc%2fcore/1.7.21?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/@swc%2fcore/1.7.21?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/@swc%2fcore/1.7.18/1.7.21?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@swc%2fcore/1.7.18/1.7.21?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>swc-project/swc (@&#8203;swc/core)</summary>

###
[`v1.7.21`](https://redirect.github.com/swc-project/swc/blob/HEAD/CHANGELOG.md#1721---2024-08-28)

[Compare
Source](https://redirect.github.com/swc-project/swc/compare/v1.7.19...v1.7.21)

##### Bug Fixes

- **(es/typescript)** Preserve more comments
([#&#8203;9509](https://redirect.github.com/swc-project/swc/issues/9509))
([3e253ec](https://redirect.github.com/swc-project/swc/commit/3e253ecc21f2028437572093b42df97ef5fe505e))

###
[`v1.7.19`](https://redirect.github.com/swc-project/swc/blob/HEAD/CHANGELOG.md#1719---2024-08-28)

[Compare
Source](https://redirect.github.com/swc-project/swc/compare/v1.7.18...v1.7.19)

##### Bug Fixes

- **(es/minifier)** Track if a var is used with `in`
([#&#8203;9508](https://redirect.github.com/swc-project/swc/issues/9508))
([7d6269e](https://redirect.github.com/swc-project/swc/commit/7d6269e3b826524e340edf274a5e42b2a0ea058a))

##### Features

- **(es/minifier)** Support mangle cache
([#&#8203;9489](https://redirect.github.com/swc-project/swc/issues/9489))
([af922d8](https://redirect.github.com/swc-project/swc/commit/af922d83e58596021476006564edb6270069d437))

- **(plugin/runner)** Improve error message
([#&#8203;9502](https://redirect.github.com/swc-project/swc/issues/9502))
([da52930](https://redirect.github.com/swc-project/swc/commit/da529304fe23bcb1a15c25811f928ebf91207ef0))

##### Miscellaneous Tasks

- **(es/codegen)** Bump minimum required swc_allocator version to 0.1.8
([#&#8203;9492](https://redirect.github.com/swc-project/swc/issues/9492))
([5258763](https://redirect.github.com/swc-project/swc/commit/5258763cf673e1684808bc2766ba6ee9c84642f1))

##### Refactor

- **(es/utils)** Unify `prepend_stmts`
([#&#8203;9493](https://redirect.github.com/swc-project/swc/issues/9493))
([faec8c1](https://redirect.github.com/swc-project/swc/commit/faec8c134d950d10a9f2dce0e5680d9230f87ceb))

</details>

---

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package.json

@@ -39,7 +39,7 @@
     "@semantic-release/github": "^8.0.6",
     "@swc-node/register": "1.10.9",
     "@swc/cli": "~0.4.0",
-    "@swc/core": "1.7.18",
+    "@swc/core": "1.7.21",
     "@types/jest": "29.5.12",
     "@types/node": "18.19.47",
     "@typescript-eslint/eslint-plugin": "6.21.0",