chore(deps): update dependency hardhat to v2.27.0 (#196)

This PR contains the following updates:

| Package | Type | Update | Change | OpenSSF |
|---|---|---|---|---|
|
[hardhat](https://redirect.github.com/nomicfoundation/hardhat/tree/v-next/v-next/hardhat)
([source](https://redirect.github.com/NomicFoundation/hardhat/tree/HEAD/v-next/hardhat))
| dependencies | minor | [`2.26.5` ->
`2.27.0`](https://renovatebot.com/diffs/npm/hardhat/2.26.5/2.27.0) |
[![OpenSSF
Scorecard](https://api.securityscorecards.dev/projects/github.com/NomicFoundation/hardhat/badge)](https://securityscorecards.dev/viewer/?uri=github.com/NomicFoundation/hardhat)
|

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Release Notes

<details>
<summary>NomicFoundation/hardhat (hardhat)</summary>

###
[`v2.27.0`](https://redirect.github.com/NomicFoundation/hardhat/releases/tag/hardhat%402.27.0):
Hardhat v2.27.0

[Compare
Source](https://redirect.github.com/NomicFoundation/hardhat/compare/hardhat@2.26.5...hardhat@2.27.0)

This release integrates the latest EDR (version `0.12.0-next.7`) into
Hardhat 2.

##### Changes

-
[`57c509d`](https://redirect.github.com/NomicFoundation/hardhat/commit/57c509d):
Upgraded EDR to
[v0.12.0-next.7](https://redirect.github.com/NomicFoundation/edr/releases/tag/%40nomicfoundation%2Fedr%400.12.0-next.7):
-
[`57c509d`](https://redirect.github.com/NomicFoundation/hardhat/commit/57c509d):
Removed support for pre-Byzantium root field from RPC receipts

***

> 💡 **The Nomic Foundation is hiring! Check [our open
positions](https://www.nomic.foundation/jobs).**

***

</details>

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<!-- This is an auto-generated description by cubic. -->
---
## Summary by cubic
Update Hardhat from 2.26.5 to 2.27.0 to bring the latest EDR and align
RPC receipt handling. Hardhat now drops support for the pre-Byzantium
root field in RPC receipts.

- **Migration**
  - No changes needed for most projects.
- Ensure any tooling or tests don’t rely on the pre-Byzantium root field
in RPC receipts.

<sup>Written for commit b027507.
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

@@ -43,7 +43,7 @@
     "@nomiclabs/hardhat-solhint": "4.1.0",
     "@openzeppelin/contracts": "5.4.0",
     "@openzeppelin/subgraphs": "0.1.8-5",
-    "hardhat": "2.26.5",
+    "hardhat": "2.27.0",
     "solhint": "6.0.1"
   },
   "overrides": {