Update dependency ethers to v5.6.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ethers	5.6.0 -> 5.6.1

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Release Notes

ethers-io/ethers.js

### [`v5.6.1`](https://togithub.com/ethers-io/ethers.js/blob/HEAD/CHANGELOG.md#ethersv561-2022-03-16-0125) [Compare Source](https://togithub.com/ethers-io/ethers.js/compare/v5.6.0...v5.6.1) - Fix issue with CCIP Read using wrong sender. ([#​2478](https://togithub.com/ethers-io/ethers.js/issues/2478); [5998fea](https://togithub.com/ethers-io/ethers.js/commit/5998fea53d5ea26358c2f10939dfdf0bc679936d), [905e98a](https://togithub.com/ethers-io/ethers.js/commit/905e98aa392e2a52d6b0339b21bfce5237fd8662))

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