fix(deps): update dependency micromark-extension-frontmatter to v2

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
micromark-extension-frontmatter	^0.2.2 -> ^2.0.0

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Release Notes

micromark/micromark-extension-frontmatter (micromark-extension-frontmatter)

v2.0.0

Compare Source

• c0b4765 Change to require Node.js 16
  migrate: update Node
• f731487 Change export map
  migrate: don’t use private APIs
• c8ea22e Update micromark

Full Changelog: micromark/micromark-extension-frontmatter@1.1.1...2.0.0

v1.1.1

Compare Source

Types

• 59e04e5 Update types for changes in micromark-util-types

Full Changelog: micromark/micromark-extension-frontmatter@1.1.0...1.1.1

v1.1.0

Compare Source

Types

• 019852e Add exports of Info, Matter, Preset types

Misc

• d3a66cf Add improved docs
• 48682f5 Refactor types, jsdocs, match markdown-rs

Full Changelog: micromark/micromark-extension-frontmatter@1.0.1...1.1.0

v1.0.1

Compare Source

Misc

• 64ae64f Add micromark-util-types as a dependency
  by @​arcanis in #​6
• 07a4d98 Fix typo
• c21214f Add improved docs

Full Changelog: micromark/micromark-extension-frontmatter@1.0.0...1.0.1

v1.0.0

Compare Source

• d594439 b9b2881 Update micromark
• b1ac00f Add JSDoc based types
• bc627a3 Use ESM

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