Update dependency minimal-mistakes-jekyll to v4.27.3

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This PR contains the following updates:

Package	Change	Age	Confidence
minimal-mistakes-jekyll	4.27.0 -> 4.27.3

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Release Notes

mmistakes/minimal-mistakes (minimal-mistakes-jekyll)

v4.27.3

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Bug Fixes

• Add explicit CSS rules for .sr-only following Font Awesome 7's changes. (#​5296)

v4.27.2

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Enhancements

• Hide .page__footer-follow if there are no links nor atom feed. (#​5279)
• Add HTML escaping for some titles, labels and metada that was missing. (#​5276)
• Add optional footer.since for copyright time range. (#​5275)

Bug Fixes

• Add escape_once to gallery title and alt text.

v4.27.1

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Enhancements

• Add a "Share on Bluesky" button (#​5179)
• Add preset variables for modern font stack (#​5033)
• Update X share button to match brand color (#​5245)

Bug Fixes

• Fix wrong icon and color for X share button.

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