[PHP 8.4] Curl: CURLOPT_DNS_USE_GLOBAL_CACHE no-op

Commit: php/php-src#15127
PHP.Watch: [PHP 8.4: Curl: `CURLOPT_DNS_USE_GLOBAL_CACHE` no longer has any effect](https://php.watch/versions/8.4/CURLOPT_DNS_USE_GLOBAL_CACHE-no-op)

Author: Ayesh

reference/curl/constants_curl_setopt.xml

@@ -597,6 +597,7 @@
      It is conditionally enabled by default if PHP is built for non-threaded use
      (CLI, FCGI, Apache2-Prefork, etc.).
      Available as of cURL 7.9.3 and deprecated as of cURL 7.11.1.
+     As of PHP 8.4, this option no longer has any effect.
     </para>
    </listitem>
   </varlistentry>

reference/curl/functions/curl-setopt.xml

@@ -66,6 +66,12 @@
       </row>
      </thead>
      <tbody>
+      <row>
+       <entry>8.4.0</entry>
+       <entry>
+        <constant>CURLOPT_DNS_USE_GLOBAL_CACHE</constant> no longer has any effect, and enabling it on thread-safe PHP builds no longer triggers a warning.
+       </entry>
+      </row>
       &curl.changelog.handle-param;
       <row>
        <entry>7.3.15, 7.4.3</entry>