Update dependency g-plane/markup_fmt to v0.9.0

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
g-plane/markup_fmt	minor	v0.8.0 -> v0.9.0

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Release Notes

g-plane/markup_fmt (g-plane/markup_fmt)

### [`v0.9.0`](https://togithub.com/g-plane/markup_fmt/releases/tag/v0.9.0) [Compare Source](https://togithub.com/g-plane/markup_fmt/compare/v0.8.0...v0.9.0) #### Features - Added [`doctypeKeywordCase`](https://togithub.com/g-plane/markup_fmt/blob/v0.9.0/docs/config.md#doctypekeywordcase) option. #### Fixes - Fixed unquoted attribute interpolation in Jinja and Vento.

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