Feature request: custom `sys_get_temp_dir`

[dkrnl]

in:

php-svg-lib/src/Svg/Surface/SurfaceCpdf.php

Line 175 in ee5bab8

$image = tempnam(sys_get_temp_dir(), "svg");

php-svg-lib/src/Svg/Surface/SurfacePDFLib.php

Line 165 in ee5bab8

$image = tempnam(sys_get_temp_dir(), "svg");