chore(deps): update dependency @nomicfoundation/hardhat-ignition-viem to v0.15.16 (#202)

This PR contains the following updates:

| Package | Type | Update | Change | OpenSSF |
|---|---|---|---|---|
| [@nomicfoundation/hardhat-ignition-viem](https://hardhat.org)
([source](https://redirect.github.com/NomicFoundation/hardhat/tree/HEAD/v-next/hardhat-ignition-viem))
| dependencies | patch | [`0.15.15` ->
`0.15.16`](https://renovatebot.com/diffs/npm/@nomicfoundation%2fhardhat-ignition-viem/0.15.15/0.15.16)
| [![OpenSSF
Scorecard](https://api.securityscorecards.dev/projects/github.com/NomicFoundation/hardhat/badge)](https://securityscorecards.dev/viewer/?uri=github.com/NomicFoundation/hardhat)
|

---

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---

### Release Notes

<details>
<summary>NomicFoundation/hardhat
(@&#8203;nomicfoundation/hardhat-ignition-viem)</summary>

###
[`v0.15.16`](https://redirect.github.com/NomicFoundation/hardhat/compare/@nomicfoundation/hardhat-ignition-viem@0.15.15...@nomicfoundation/hardhat-ignition-viem@0.15.16)

[Compare
Source](https://redirect.github.com/NomicFoundation/hardhat/compare/@nomicfoundation/hardhat-ignition-viem@0.15.15...@nomicfoundation/hardhat-ignition-viem@0.15.16)

</details>

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<!-- This is an auto-generated description by cubic. -->
---
## Summary by cubic
Updated @nomicfoundation/hardhat-ignition-viem to 0.15.16 to stay
current and align with the latest Ignition peer dependencies.

- **Dependencies**
  - Bumped version in package.json and bun.lock.
- Lockfile reflects peer ranges: hardhat-ignition ^0.15.16 and
ignition-core ^0.15.15.

<sup>Written for commit cb749a2.
Summary will update automatically on new commits.</sup>

<!-- End of auto-generated description by cubic. -->

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

bun.lock

@@ -38,7 +38,7 @@
     "@graphprotocol/graph-cli": "0.96.0",
     "@graphprotocol/graph-ts": "0.38.0",
     "@nomicfoundation/hardhat-foundry": "1.2.0",
-    "@nomicfoundation/hardhat-ignition-viem": "0.15.15",
+    "@nomicfoundation/hardhat-ignition-viem": "0.15.16",
     "@nomicfoundation/hardhat-toolbox-viem": "4.1.1",
     "@nomiclabs/hardhat-solhint": "4.1.0",
     "@openzeppelin/contracts": "5.4.0",