fix: call deprecated curl_close() only on PHP 7.4

Author: Art4

src/Redmine/Client/NativeCurlClient.php

@@ -309,7 +309,11 @@ private function runRequest(string $method, string $path, string $body = '', str
 
         if (CURLE_OK !== $curlErrorNumber) {
             $e = new ClientException(curl_error($curl), $curlErrorNumber);
-            curl_close($curl);
+
+            if (PHP_VERSION_ID < 80000) {
+                curl_close($curl);
+            }
+
             throw $e;
         }
 
@@ -321,7 +325,9 @@ private function runRequest(string $method, string $path, string $body = '', str
             $this->lastResponseContentType = $possibleContentType;
         }
 
-        curl_close($curl);
+        if (PHP_VERSION_ID < 80000) {
+            curl_close($curl);
+        }
 
         return $this->lastResponseStatusCode < 400;
     }

tests/RedmineExtension/RedmineInstance.php

@@ -105,7 +105,9 @@ private function runHealthChecks(RedmineVersion $version): void
         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
         $data = curl_exec($ch);
         $statusCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
-        curl_close($ch);
+        if (PHP_VERSION_ID < 80000) {
+            curl_close($ch);
+        }
 
         if ($data === false || $statusCode !== 200) {
             throw new InvalidArgumentException(sprintf(