Use of "self" in callables is deprecated in include/tcpdf_fonts.php (PHP 8.2)

[littlepackage]

An issue with a suggested fix. A "use of "self" in callables is deprecated" warning is arising from tcpdf_fonts.php using PHP 8.2

In lines 1788, 1790, and 2010 of tcpdf_fonts.php, this deprecation warning (PHP 8.2) can be fixed by changing the lines to read:

return array_map(self::class . "::unichrUnicode",$ta);

return array_map(self::class . "::unichrASCII",$ta); and

$carr = array_map(self::class . "::uniord",$chars); respectively.

[williamdes]

Hi @sagehenstudio Can you open a pull-request for this change ?

[littlepackage]

Sure: #633