Update dependency markdown-it to ^12.2.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
markdown-it	^12.0.6 -> ^12.2.0

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Release Notes

markdown-it/markdown-it

### [`v12.2.0`](https://togithub.com/markdown-it/markdown-it/blob/master/CHANGELOG.md#​1220---2021-08-02) [Compare Source](https://togithub.com/markdown-it/markdown-it/compare/12.1.0...12.2.0) ##### Added - Ordered lists: add order value to token info. ##### Fixed - Always suffix indented code block with a newline, [#​799](https://togithub.com/markdown-it/markdown-it/issues/799). ### [`v12.1.0`](https://togithub.com/markdown-it/markdown-it/blob/master/CHANGELOG.md#​1210---2021-07-01) [Compare Source](https://togithub.com/markdown-it/markdown-it/compare/12.0.6...12.1.0) ##### Changed - Updated CM spec compatibility to 0.30.

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