chore(deps): update dependency hardhat to v2.22.15

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
hardhat (source)	2.22.13 -> 2.22.15

---

Release Notes

nomiclabs/hardhat (hardhat)

v2.22.15: Hardhat v2.22.15

Compare Source

This is a small bug fix release to fix custom HTTP headers when used in forked configurations.

Changes

• ede1cde: Fixed custom HTTP headers for forked configurations

---

💡 The Nomic Foundation is hiring! Check our open positions.

---

v2.22.14: Hardhat v2.22.14

Compare Source

This is a small bug fix release to handle Ethereum nodes that are no longer returning total difficulty from the eth.getBlock RPC API.

Changes

• 09ead48: Fixed error when remote nodes are not returning total difficulty from the eth.getBlock RPC API, by adding a fallback value

---

💡 The Nomic Foundation is hiring! Check our open positions.

---

---

Configuration

📅 Schedule: Branch creation - "before 9am on monday" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.