chore(deps): update dependency hardhat to v2.22.6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
hardhat (source)	2.22.5 -> 2.22.6

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Release Notes

nomiclabs/hardhat (hardhat)

### [`v2.22.6`](https://togithub.com/NomicFoundation/hardhat/releases/tag/hardhat%402.22.6): Hardhat v2.22.6 [Compare Source](https://togithub.com/nomiclabs/hardhat/compare/hardhat@2.22.5...hardhat@2.22.6) ### Changes - [`cdf0160`](https://togithub.com/nomiclabs/hardhat/commit/cdf0160): Upgrade bundled solcjs - [`3c66da2`](https://togithub.com/nomiclabs/hardhat/commit/3c66da2): Add support for Node v22 - [`9fadc22`](https://togithub.com/nomiclabs/hardhat/commit/9fadc22): Bump EDR to [v0.4.1](https://togithub.com/NomicFoundation/edr/releases/tag/%40nomicfoundation%2Fedr%400.4.1). - [`095faa4`](https://togithub.com/nomiclabs/hardhat/commit/095faa4): Added hardfork histories for Optimim and Arbitrum chains *** > 💡 **The Nomic Foundation is hiring! Check [our open positions](https://www.nomic.foundation/jobs).** ***

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