Prevent zero from being passed to array_chunk() (#686) #600

Job	Run time
PHPUnit (PHP 7.2)	40s
PHPUnit (PHP 7.3)	35s
Tests alternative autoloader (PHP 7.1)	9s
Tests alternative autoloader (PHP 7.2)	8s
PHPUnit Composer v2 (PHP 7.4)	41s
PHPUnit coverage (PHP 7.4)	1m 8s
Tests alternative autoloader (PHP 7.3)	7s
Tests alternative autoloader (PHP 7.4)	6s
PHPUnit (PHP 7.4)	27s
PHPUnit (PHP 7.1)	33s
PHPUnit lowest deps (PHP 7.3)	27s
Tests alternative autoloader (PHP 8.0)	10s
PHPUnit (PHP 8.0)	37s
Tests alternative autoloader (PHP 8.1)	16s
PHPUnit (PHP 8.1)	34s
Tests alternative autoloader (PHP 8.2)	6s
PHPUnit (PHP 8.2)	34s
Windows-Tests with PHP 7.1	1m 12s
Tests alternative autoloader (PHP 8.3)	11s
PHPUnit (PHP 8.3)	33s
Windows-Tests with PHP 7.2	52s
Windows-Tests with PHP 7.3	54s
Windows-Tests with PHP 7.4	53s
Windows-Tests with PHP 8.0	50s
Windows-Tests with PHP 8.1	56s
Windows-Tests with PHP 8.2	49s
Windows-Tests with PHP 8.3	47s
	15m 15s

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