Update stubs

Author: actions-user

stubs/ext/gd/imagecolorexactalpha.php

@@ -1,5 +1,5 @@
 <?php 
 
-function imagecolorexactalpha(\GdImage $image, int $red, int $green, int $blue, int $alpha) : int|false
+function imagecolorexactalpha(\GdImage $image, int $red, int $green, int $blue, int $alpha) : int
 {
 }

stubs/ext/standard/str_getcsv.php

@@ -1,5 +1,5 @@
 <?php 
 
-function str_getcsv(string $string, string $separator = ",", string $enclosure = "\"", string $escape = '\\') : array
+function str_getcsv(string $string, string $separator = ",", string $enclosure = "\"", string $escape = "\\") : array
 {
 }