[Sync EN] Sync return type changes

[github-actions]

PR: https://github.com/php/doc-en/pull/5075 (2026-03-08)

Файлы RU для обновления

• reference/fileinfo/functions/finfo-close.xml
• reference/ftp/functions/ftp-set-option.xml
• reference/image/functions/imagealphablending.xml
• reference/image/functions/imageantialias.xml
• reference/image/functions/imagearc.xml
• reference/image/functions/imagechar.xml
• reference/image/functions/imagecharup.xml
• reference/image/functions/imagecolordeallocate.xml
• reference/image/functions/imagecolormatch.xml
• reference/image/functions/imagecopy.xml
• reference/image/functions/imagecopymerge.xml
• reference/image/functions/imagecopymergegray.xml
• reference/image/functions/imagecopyresampled.xml
• reference/image/functions/imagecopyresized.xml
• reference/image/functions/imagedashedline.xml
• reference/image/functions/imagedestroy.xml
• reference/image/functions/imageellipse.xml
• reference/image/functions/imagefill.xml
• reference/image/functions/imagefilledarc.xml
• reference/image/functions/imagefilledellipse.xml
• reference/image/functions/imagefilledrectangle.xml
• reference/image/functions/imagefilltoborder.xml
• reference/image/functions/imageflip.xml
• reference/image/functions/imagegammacorrect.xml
• reference/image/functions/imagelayereffect.xml
• reference/image/functions/imageline.xml
• reference/image/functions/imagerectangle.xml
• reference/image/functions/imageresolution.xml
• reference/image/functions/imagesavealpha.xml
• reference/image/functions/imagesetbrush.xml
• reference/image/functions/imagesetclip.xml
• reference/image/functions/imagesetpixel.xml
• reference/image/functions/imagesetthickness.xml
• reference/image/functions/imagesettile.xml
• reference/image/functions/imagestring.xml
• reference/image/functions/imagestringup.xml
• reference/pcntl/functions/pcntl-exec.xml