Use dynamic port range in testLoadsProxySettings (#96378)

Closes #95821

Author: pxsalehi

modules/repository-gcs/src/test/java/org/elasticsearch/repositories/gcs/GoogleCloudStorageClientSettingsTests.java

@@ -132,7 +132,7 @@ public void testProjectIdDefaultsToCredentials() throws Exception {
     public void testLoadsProxySettings() throws Exception {
         final String clientName = randomAlphaOfLength(5);
         final ServiceAccountCredentials credential = randomCredential(clientName).v1();
-        var proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(InetAddress.getLoopbackAddress(), randomIntBetween(1024, 65536)));
+        var proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(InetAddress.getLoopbackAddress(), randomIntBetween(49152, 65535)));
         final GoogleCloudStorageClientSettings googleCloudStorageClientSettings = new GoogleCloudStorageClientSettings(
             credential,
             ENDPOINT_SETTING.getDefault(Settings.EMPTY),