Update dependency nesbot/carbon to v2.56.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
nesbot/carbon (source)	require	minor	2.55.2 -> 2.56.0

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Release Notes

briannesbitt/Carbon

v2.56.0

Compare Source

Complete commits list: briannesbitt/Carbon@2.55.2...2.56.0

Summary:

• Added #​2528 CarbonPeriod Handle infinite recurrences when parsing period string by @​dbohn
• Added #​2537 Allow precision 0 in Carbon DBAL types by @​kdaniel95
• Added #​2507 Support for PHPStan 1.*
• Fixed #​2520 Replace Polish ending in grouped units
• Fixed #​2529 Allow strings in comparison methods

New Contributors 🎉

• @​dbohn made their first contribution in CarbonPeriod Handle infinite recurrences when parsing period string briannesbitt/Carbon#2528
• @​kdaniel95 made their first contribution in Allow precision 0 in Carbon DBAL types briannesbitt/Carbon#2537

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