Update dependency sha to v3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
sha	~2.0.1 -> ~3.0.0

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Release Notes

ForbesLindesay/sha

### [`v3.0.0`](https://togithub.com/ForbesLindesay/sha/releases/v3.0.0) [Compare Source](https://togithub.com/ForbesLindesay/sha/compare/v2.0.1...v3.0.0) ##### Performance Improvements - remove readable-stream dependency ([#​18](https://togithub.com/ForbesLindesay/sha/issues/18)) ([d954fa9](https://togithub.com/ForbesLindesay/sha/commit/d954fa9)) ##### BREAKING CHANGES - versions of node that don't have stream.Transform are no longer supported

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