fix(deps): update dependency ky to ^0.21.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
ky	dependencies	minor	^0.20.0 -> ^0.21.0

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Release Notes

sindresorhus/ky

### [`v0.21.0`](https://togithub.com/sindresorhus/ky/releases/v0.21.0) [Compare Source](https://togithub.com/sindresorhus/ky/compare/v0.20.0...v0.21.0) - Add `Request` to `TimeoutError` ([#​267](https://togithub.com/sindresorhus/ky/issues/267)) [`b9dbd19`](https://togithub.com/sindresorhus/ky/commit/b9dbd19)

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[codecov[bot]]

Codecov Report

Merging #126 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #126   +/-   ##
=======================================
  Coverage   78.98%   78.98%           
=======================================
  Files          18       18           
  Lines         157      157           
  Branches       10       10           
=======================================
  Hits          124      124           
  Misses         33       33           

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