Update dependency emoji-toolkit to v8

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
emoji-toolkit (source)	6.6.0 -> 8.0.0

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Release Notes

joypixels/emoji-toolkit (emoji-toolkit)

v8.0.0: Release

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This update brings the toolkit up to date with JoyPixels 8.0, Unicode 15.0.

v7.0.1: Patch JS library

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This release includes a patch for a bug exposed when using the shortnameToUnicode function with an unknown shortname.

v7.0.0: 7.0 Release

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This release brings the toolkit current with JoyPixels 7.0 and Unicode 14. Additional changes in this release include:

• removal of Python library
• addition of joypixels.json configuration file and integration into libs/tests
• modifications and additions to test suite
• update of node dependencies, PHPUnit dependency
• removal of bower files
• removal of long-deprecated static PHP library class
• general bug fixes
• inclusion of alternative shortnames within PHP library
• removal of deprecated unicodeToImage PHP/JS method
• inclusion of s9e/regexp-builder (thanks @​JoshyPHP!) for regex automation

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