chore: update dependency husky to v2

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
husky	devDependencies	major	1.1.2 -> 2.1.0	source

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Release Notes

typicode/husky

v2.1.0

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• Improve shell script portability by using . rather than source

v2.0.0

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• Update dependencies
• Update messages
• Drop Node 6 support

v1.3.1

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• Update docs
• Upgrade is-ci and support more CIs
• Disable 1.3.0 change related to stdin due to a bug on Windows

v1.3.0

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• Enable stdin if hook is running in a terminal

v1.2.1

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• Fix don't fail if directory in project contains whitespace

v1.2.0

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• Add comments to generated hooks to specify which package has installed husky and when

v1.1.4

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• Upgrade execa dependency

v1.1.3

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• Fix don't fail if package.json doesn't exist

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