bug #47145 [HttpClient] Fix shared connections not being freed on PHP < 8 (nicolas-grekas)

This PR was merged into the 4.4 branch.

Discussion
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[HttpClient] Fix shared connections not being freed on PHP < 8

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | Fix #46937
| License       | MIT
| Doc PR        | -

Commits
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cef44afeaf [HttpClient] Fix shared connections not being freed on PHP < 8

Author: nicolas-grekas

Internal/CurlClientState.php

@@ -96,7 +96,7 @@ public function reset()
         curl_share_setopt($this->share, \CURLSHOPT_SHARE, \CURL_LOCK_DATA_DNS);
         curl_share_setopt($this->share, \CURLSHOPT_SHARE, \CURL_LOCK_DATA_SSL_SESSION);
 
-        if (\defined('CURL_LOCK_DATA_CONNECT')) {
+        if (\defined('CURL_LOCK_DATA_CONNECT') && \PHP_VERSION_ID >= 80000) {
             curl_share_setopt($this->share, \CURLSHOPT_SHARE, \CURL_LOCK_DATA_CONNECT);
         }
     }