build(deps): bump hardhat from 2.19.4 to 2.20.1

Bumps [hardhat](https://github.com/nomiclabs/hardhat) from 2.19.4 to 2.20.1.
- [Release notes](https://github.com/nomiclabs/hardhat/releases)
- [Commits](https://github.com/nomiclabs/hardhat/compare/[email protected]@2.20.1)

---
updated-dependencies:
- dependency-name: hardhat
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>