Change mapping of connectionRequestTimeout to ConnPool leaseTimeout.

Original Pull Request: #1925
Closes: #1926

(cherry picked from commit 3b8f0c9)
(cherry picked from commit 92806d2)

Author: nichines

src/main/java/org/springframework/data/elasticsearch/client/RestClients.java

@@ -54,6 +54,7 @@
  * @author Huw Ayling-Miller
  * @author Henrique Amaral
  * @author Peter-Josef Meisch
+ * @author Nic Hines
  * @since 3.2
  */
 public final class RestClients {
@@ -104,15 +105,14 @@ public static ElasticsearchRestClient create(ClientConfiguration clientConfigura
 			Duration connectTimeout = clientConfiguration.getConnectTimeout();
 
 			if (!connectTimeout.isNegative()) {
-
 				requestConfigBuilder.setConnectTimeout(Math.toIntExact(connectTimeout.toMillis()));
-				requestConfigBuilder.setConnectionRequestTimeout(Math.toIntExact(connectTimeout.toMillis()));
 			}
 
 			Duration timeout = clientConfiguration.getSocketTimeout();
 
 			if (!timeout.isNegative()) {
 				requestConfigBuilder.setSocketTimeout(Math.toIntExact(timeout.toMillis()));
+				requestConfigBuilder.setConnectionRequestTimeout(Math.toIntExact(connectTimeout.toMillis()));
 			}
 
 			clientBuilder.setDefaultRequestConfig(requestConfigBuilder.build());