chore(deps): update rust crate worker to v0.3.4 (#653)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [worker](https://togithub.com/cloudflare/workers-rs) |
workspace.dependencies | patch | `0.3.3` -> `0.3.4` |

---

### Release Notes

<details>
<summary>cloudflare/workers-rs (worker)</summary>

###
[`v0.3.4`](https://togithub.com/cloudflare/workers-rs/releases/tag/v0.3.4)

[Compare
Source](https://togithub.com/cloudflare/workers-rs/compare/v0.3.3...v0.3.4)

#### What's Changed

- Fix breaking change in `js-sys` / `web-sys`. Remove HeaderExt and
AbortSignalExt by [@&#8203;kflansburg](https://togithub.com/kflansburg)
in
[https://github.com/cloudflare/workers-rs/pull/621](https://togithub.com/cloudflare/workers-rs/pull/621)

**Full Changelog**:
cloudflare/workers-rs@v0.3.3...v0.3.4

</details>

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