fix(deps): update dependency @fortawesome/fontawesome-free to v5.12.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
@fortawesome/fontawesome-free (source)	dependencies	patch	5.12.0 -> 5.12.1

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Release Notes

FortAwesome/Font-Awesome

v5.12.1

Compare Source

Added

• user-unlock icon FortAwesome/Font-Awesome#​13280
• mixer brand icon FortAwesome/Font-Awesome#​11242
• coffin-cross icon FortAwesome/Font-Awesome#​15646
• instagram-square icon FortAwesome/Font-Awesome#​9223
• shopify icon FortAwesome/Font-Awesome#​3850
• dailymotion icon FortAwesome/Font-Awesome#​3890

Changed

• Do not separate web fonts files for Free Kits
• The .fab CSS class now has explicit weight of 400 instead of inheriting 'normal'
• Balance the plus symbol in file-plus and folder-plus FortAwesome/Font-Awesome#​16004
• Removed cross from coffin (new coffin-cross still available) FortAwesome/Font-Awesome#​15646
• Updated edge brand icon FortAwesome/Font-Awesome#​15771
• Updated clock hands FortAwesome/Font-Awesome#​15779

Fixed

• Guard against run-away pseudo element searching with String.codePointAt ponyfill
• Silence errors when using the conflict detector

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