Update dependency gh-pages to v2.2.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
gh-pages	2.1.1 -> 2.2.0

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Release Notes

tschaub/gh-pages

### [`v2.2.0`](https://togithub.com/tschaub/gh-pages/blob/master/changelog.md#v220) [Compare Source](https://togithub.com/tschaub/gh-pages/compare/v2.1.1...v2.2.0) - [#​318](https://togithub.com/tschaub/gh-pages/pull/318) - Allow an absolute path as dist directory ([@​okuryu](https://togithub.com/okuryu)) - [#​319](https://togithub.com/tschaub/gh-pages/pull/319) - Added 'remove' documentation to the readme ([@​Sag-Dev](https://togithub.com/Sag-Dev)) - [#​323](https://togithub.com/tschaub/gh-pages/pull/323) - Update dependencies ([@​tschaub](https://togithub.com/tschaub)) - [#​277](https://togithub.com/tschaub/gh-pages/pull/277) - Add `--no-history` flag not to preserve deploy history ([@​dplusic](https://togithub.com/dplusic))

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