chore(deps): update dependency phpunit/phpunit to v9.6.37 (main)

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
phpunit/phpunit (source)	9.6.36 → 9.6.37

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Release Notes

sebastianbergmann/phpunit (phpunit/phpunit)

v9.6.37: PHPUnit 9.6.37

Compare Source

Changed

• Do not pass empty output of a test that was run in a separate process to unserialize() (which emits a warning for an empty string as of PHP 8.6)

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