Update dependency hardhat to v2.19.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
hardhat (source)	2.19.0 -> 2.19.1

---

Release Notes

nomiclabs/hardhat (hardhat)

v2.19.1: Hardhat v2.19.1

Compare Source

This release fixes a couple of issues:

• A problem in low-traffic chains that resulted in txs using a maxPriorityFeePerGas of 0, which were then rejected by the node.
• A bug in the compiler downloader that was triggered in big projects that used many different versions of solc.

Besides that, the project initialization now uses the latest version of the Hardhat Toolboxes.

---

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 has been generated by Mend Renovate. View repository job log here.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (23c9e07) 98.17% compared to head (870ed8d) 98.17%.

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #418   +/-   ##
=======================================
  Coverage   98.17%   98.17%           
=======================================
  Files          34       34           
  Lines       14068    14068           
  Branches      673      673           
=======================================
  Hits        13811    13811           
  Misses        252      252           
  Partials        5        5           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.