Update stubs

Author: phpstan-bot

stubs/ext/hash/hash.php

@@ -1,6 +1,6 @@
 <?php 
 
 /** @generate-function-entries */
-function hash(string $algo, string $data, bool $binary = false) : string|false
+function hash(string $algo, string $data, bool $binary = false) : string
 {
 }

stubs/ext/hash/hash_hmac.php

@@ -1,5 +1,5 @@
 <?php 
 
-function hash_hmac(string $algo, string $data, string $key, bool $binary = false) : string|false
+function hash_hmac(string $algo, string $data, string $key, bool $binary = false) : string
 {
 }