Update nesbot/carbon requirement from ^1.25 to ^2.22

[dependabot-preview]

Updates the requirements on nesbot/carbon to permit the latest version.

Release notes

Sourced from nesbot/carbon's releases.

2.22.0

Complete commits list: briannesbitt/Carbon@2.21.3...2.22.0

Summary:

• #1778 Added CarbonPeriod methods: copy(), make(), instance(), forEach(), map()
• #1775 Added equalTo() to CarbonInterval and CarbonPeriod
• #1797 Added notEqualTo() to CarbonInterval and CarbonPeriod
• #1796 Added CarbonInterval comparison methods
• #1803 Fixed Swedish translation
• #1802 Fixed Catalan translation
• #1808 Allowed mixin() to load traits
• #1807 Fixed Croatian translation
• #1811 Added a_unit for Polish
• #1809 Added betweenExcluded method and between methods for intervals
• Fixed macros in PHP 8
• #1818 Fixed Persian translation of a_hour/second/from_now
• #1816 Fixed from_now translation in Chinese

Commits

• 1a0e48b Update zh tests
• a19e2d2 Fix #1816 from now translation in Chinese
• 81bda42 Merge pull request #1818 from hpez/master
• 5277bd8 Update uz_Arab and mzn translations unit tests
• 9775b26 Update Persian translations unit tests
• 757505f Persian language localization fixes
• 5fc57c6 Set specific tests for each macros in PHP 7 and 8
• 7870e27 Temporary disabling binding $this/static for PHP 8
• 05da722 Privatize loadMixin* method as reserved for mixin() method
• e947e03 Unbind $this in macros only for PHP < 8
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #10.