[php-src] Issue #21697: PHP 8.4.20, Windows binary, php_curl.dll, php_intl.dll fail to load

Issue: https://github.com/php/php-src/issues/21697
Author: tsimmons

### Description

After upgrading to 8.4.20 from 8.4.19, the following is logged:

`PHP Warning:  PHP Startup: Unable to load dynamic library 'php_curl.dll' (tried: D:\PHP\ext\php_curl.dll (The specified module could not be found), D:\PHP\ext\php_php_curl.dll.dll (The specified module could not be found)) in Unknown on line 0`

Even when running PHP from the command line using:

`D:\PHP\php.exe -m`

The file D:\PHP\ext\php_curl.dll exists and has proper permissions. Reverting to 8.4.19 solves the issue.

In addition, starting with 8.4.18 and continuing through 8.4.20, the same issue exists with php_intl.dll.

`PHP Warning:  PHP Startup: Unable to load dynamic library 'php_intl.dll' (tried: D:\PHP\ext\php_intl.dll (The specified module could not be found), D:\PHP\ext\php_php_intl.dll.dll (The specified module could not be found)) in Unknown on line 0`


### PHP Version

```plain
PHP 8.4.20 (cli) (built: Apr  8 2026 08:27:36) (NTS Visual C++ 2022 x64)
Copyright (c) The PHP Group
Built by The PHP Group
Zend Engine v4.4.20, Copyright (c) Zend Technologies
    with Zend OPcache v8.4.20, Copyright (c), by Zend Technologies
```

### Operating System

Windows Server 2016