Update dependency ethers to v6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ethers	^5.7.2 -> ^6.0.0

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Release Notes

ethers-io/ethers.js

### [`v6.0.0`](https://togithub.com/ethers-io/ethers.js/blob/HEAD/CHANGELOG.md#ethersv600-2023-02-02-2119) [Compare Source](https://togithub.com/ethers-io/ethers.js/compare/v5.7.2...90afd9bd81ed1408421a0247fa0845a74c9eb319) - Initial v6 release.

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Configuration

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