fixed not exported class to unnamed module issue for the live test from source code run (Azure#28937)

Author: AikoBB

sdk/communication/azure-communication-identity/pom.xml

@@ -55,6 +55,8 @@
     <!-- Configures the Java 9+ run to perform the required module exports, opens, and reads that are necessary for testing but shouldn't be part of the module-info. -->
     <javaModulesSurefireArgLine>
       --add-opens com.azure.communication.identity/com.azure.communication.identity=ALL-UNNAMED
+      <!-- azure-communication-identity uses Identity in tests which loads NettyAsyncHttpClient from unnamed module in "from source" core runs -->
+      --add-opens com.azure.core/com.azure.core.implementation.util=ALL-UNNAMED
     </javaModulesSurefireArgLine>
   </properties>