[Test] Fix SslMultiPortTests by increasing the number of ephemeral ports on windows (#106540)

This PR increases client's port ranges for tests which are executed on
Windows in order to avoid failures due to some port ranges being
excluded from use. The larger ports range (300) is chosen based on the
observation where a random consecutive range of 200 ports can be
excluded on Windows test workers.

Relates to #103894, which
fixed similar issues but this one seems to have been missed.

Resolves: #106537

Author: slobodanadamovic

x-pack/plugin/security/src/internalClusterTest/java/org/elasticsearch/xpack/security/transport/ssl/SslMultiPortTests.java

@@ -6,6 +6,7 @@
  */
 package org.elasticsearch.xpack.security.transport.ssl;
 
+import org.apache.lucene.util.Constants;
 import org.elasticsearch.client.transport.NoNodeAvailableException;
 import org.elasticsearch.client.transport.TransportClient;
 import org.elasticsearch.common.network.NetworkAddress;
@@ -39,14 +40,24 @@
 
 public class SslMultiPortTests extends SecurityIntegTestCase {
 
+    private static final int NUMBER_OF_CLIENT_PORTS = Constants.WINDOWS ? 300 : 100;
+
     private static int randomClientPort;
+    private static String randomClientPortRange;
     private static int randomNoClientAuthPort;
+    private static String randomNoClientAuthPortRange;
     private static InetAddress localAddress;
 
     @BeforeClass
     public static void getRandomPort() {
-        randomClientPort = randomIntBetween(49000, 65500); // ephemeral port
-        randomNoClientAuthPort = randomIntBetween(49000, 65500);
+        randomClientPort = randomIntBetween(49152, 65535 - NUMBER_OF_CLIENT_PORTS);
+        randomClientPortRange = randomClientPort + "-" + (randomClientPort + NUMBER_OF_CLIENT_PORTS);
+
+        randomNoClientAuthPort = randomValueOtherThanMany(
+            port -> port >= randomClientPort - NUMBER_OF_CLIENT_PORTS && port <= randomClientPort + NUMBER_OF_CLIENT_PORTS,
+            () -> randomIntBetween(49152, 65535 - NUMBER_OF_CLIENT_PORTS)
+        );
+        randomNoClientAuthPortRange = randomNoClientAuthPort + "-" + (randomNoClientAuthPort + NUMBER_OF_CLIENT_PORTS);
         localAddress = InetAddress.getLoopbackAddress();
     }
 
@@ -60,9 +71,6 @@ public static void getRandomPort() {
      */
     @Override
     protected Settings nodeSettings(int nodeOrdinal, Settings otherSettings) {
-        String randomClientPortRange = randomClientPort + "-" + (randomClientPort + 100);
-        String randomNoClientAuthPortRange = randomNoClientAuthPort + "-" + (randomNoClientAuthPort + 100);
-
         Path trustCert;
         try {
             trustCert = getDataPath("/org/elasticsearch/xpack/security/transport/ssl/certs/simple/testclient-client-profile.crt");