chore(deps): update mdbook monorepo to v0.5.3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
mdbook-core	workspace.dependencies	patch	0.5.2 → 0.5.3
mdbook-driver	workspace.dependencies	patch	0.5.2 → 0.5.3
mdbook-preprocessor	workspace.dependencies	patch	0.5.2 → 0.5.3
mdbook-renderer	workspace.dependencies	patch	0.5.2 → 0.5.3

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Release Notes

rust-lang/mdBook (mdbook-core)

v0.5.3

Compare Source

v0.5.2...v0.5.3

Changed

• Improve spacing in sidebar section headings.
  #​3122
• Updated cargo dependencies.
  #​3083
  #​3077
  #​3058
  #​3057
  #​3042
  #​3045
  #​3044
  #​3036
  #​3022
  #​3017
  #​3018
  #​3019
  #​2998
  #​2996

Fixed

• The "current" page highlighting in the sidebar now handles servers that redirect and strip the .html extension.
  #​3028
• Remove ?highlight= from URL when highlights are dismissed via clicking.
  #​3084
• Fix global keypresses triggering when other elements are in focus.
  #​3087
• Fix download URL format for mdBook in CI guide.
  #​3073
• Improve error message for invalid Font Awesome icons.
  #​3037
• Fix nested admonitions that use wrong header colors.
  #​3035

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