Deprecation warning with php 8.1

[abusohib]

[11-May-2023 09:46:40 Indian/Kerguelen] PHP Deprecated: Implicit conversion from float 0.5 to int loses precision in barcodes/qrcode.php on line 891

https://github.com/tecnickcom/TCPDF/blob/main/include/barcodes/qrcode.php#L891

[johnson361]

$row =(int) $row; Adding this line should convert the float value to integer just before $ret = $this->rsblocks[$row]['data'][$col]; on line 890

[williamdes]

Can you close this one please? #615 was merged and 6.6.3 is out