Fix wrong signature for DateInterval::createFromDateString in 8.3+

[sunkan]

Fixes phpstan/phpstan#14479

Summary

In php8.3 the signature changed from

DateInterval::createFromDateString(string $datetime): DateInterval|false

to

DateInterval::createFromDateString(string $datetime): DateInterval

now it instead throws an DateMalformedStringException

Reference: https://www.php.net/manual/en/dateinterval.createfromdatestring.php

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This pr collides with the fix for phpstan/phpstan#8442 but I don't know how to solve that.

[ondrejmirtes]

The linked issue is closed. Please first create an issue from one of the templates at https://github.com/phpstan/phpstan/issues/new/choose and provide a failing playground example.

[sunkan]

I did use the "Function signature mismatch"

And it says

<!-- Please send a pull request in phpstan/phpstan-src that updates file resources/functionMap.php instead. Thank you. -->

[VincentLanglet]

Exemple of the issue https://phpstan.org/r/213cc168-576f-49eb-b1e3-f32de3fdf0bd

The DateIntervalDynamicReturnTypeExtension need to be updated too