chore(deps): update dependency viem to v2.43.4 (#162)

This PR contains the following updates:

| Package | Type | Update | Change | OpenSSF |
|---|---|---|---|---|
| [viem](https://viem.sh)
([source](https://redirect.github.com/wevm/viem)) | dependencies | patch
| [`2.43.3` →
`2.43.4`](https://renovatebot.com/diffs/npm/viem/2.43.3/2.43.4) |
[![OpenSSF
Scorecard](https://api.securityscorecards.dev/projects/github.com/wevm/viem/badge)](https://securityscorecards.dev/viewer/?uri=github.com/wevm/viem)
|

---

### Release Notes

<details>
<summary>wevm/viem (viem)</summary>

###
[`v2.43.4`](https://redirect.github.com/wevm/viem/releases/tag/viem%402.43.4)

[Compare
Source](https://redirect.github.com/wevm/viem/compare/viem@2.43.3...viem@2.43.4)

##### Patch Changes

- [#&#8203;4194](https://redirect.github.com/wevm/viem/pull/4194)
[`16b0819efbf535fd8a287921323380c281c697f7`](https://redirect.github.com/wevm/viem/commit/16b0819efbf535fd8a287921323380c281c697f7)
Thanks [@&#8203;0xRenji](https://redirect.github.com/0xRenji)! - Fixed
`getAbiItem` for overloaded tuples with additional child tuple
components beyond the number of args

- [#&#8203;4193](https://redirect.github.com/wevm/viem/pull/4193)
[`61ee0cece16abf3d63ad9f569ca683ea9586fb9c`](https://redirect.github.com/wevm/viem/commit/61ee0cece16abf3d63ad9f569ca683ea9586fb9c)
Thanks [@&#8203;akitothemoon](https://redirect.github.com/akitothemoon)!
- Added CpChain network.

-
[`892ebea16241fd4403c691022297463e2fad2d5b`](https://redirect.github.com/wevm/viem/commit/892ebea16241fd4403c691022297463e2fad2d5b)
Thanks [@&#8203;jxom](https://redirect.github.com/jxom)! - Fixed
`getUserOperationHash` calculation for EIP-7702 UserOperations.

</details>

---

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bun.lock

@@ -44,7 +44,7 @@
     "multiformats": "13.4.2",
     "lefthook": "2.0.13",
     "ox": "0.11.1",
-    "viem": "2.43.3",
+    "viem": "2.43.4",
     "yaml": "2.8.2",
     "zod": "4.2.1"
   }