fix(deps): update dependency helmet to v8.2.0 (#645)

This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Adoption](https://docs.renovatebot.com/merge-confidence/) |
[Passing](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|---|---|
| [helmet](https://helmet.js.org/)
([source](https://redirect.github.com/helmetjs/helmet)) | [`8.1.0` →
`8.2.0`](https://renovatebot.com/diffs/npm/helmet/8.1.0/8.2.0) |
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|

---

### Release Notes

<details>
<summary>helmetjs/helmet (helmet)</summary>

###
[`v8.2.0`](https://redirect.github.com/helmetjs/helmet/blob/HEAD/CHANGELOG.md#820---2026-05-21)

[Compare
Source](https://redirect.github.com/helmetjs/helmet/compare/v8.1.0...v8.2.0)

- `Cross-Origin-Opener-Policy`: support `noopener-allow-popups`. See
[#&#8203;522](https://redirect.github.com/helmetjs/helmet/pull/522)
- Improve error message when passing duplicate options

</details>

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package.json

@@ -23,7 +23,7 @@
     "@koa/bodyparser": "6.1.0",
     "@koa/router": "15.5.0",
     "dotenv": "17.4.2",
-    "helmet": "8.1.0",
+    "helmet": "8.2.0",
     "koa": "3.2.1",
     "koa-compress": "5.2.1",
     "pg": "8.21.0",