switch to API key (Azure#23311)

Author: mssfang

sdk/textanalytics/azure-ai-textanalytics/src/test/java/com/azure/ai/textanalytics/TextAnalyticsClientTestBase.java

@@ -62,7 +62,6 @@
 import com.azure.core.util.Configuration;
 import com.azure.core.util.IterableStream;
 import com.azure.core.util.polling.SyncPoller;
-import com.azure.identity.DefaultAzureCredentialBuilder;
 import org.junit.jupiter.api.Test;
 
 import java.time.Duration;
@@ -1121,7 +1120,8 @@ TextAnalyticsClientBuilder getTextAnalyticsAsyncClientBuilder(HttpClient httpCli
         if (getTestMode() == TestMode.PLAYBACK) {
             builder.credential(new AzureKeyCredential(FAKE_API_KEY));
         } else {
-            builder.credential((new DefaultAzureCredentialBuilder().build()));
+            builder.credential((new AzureKeyCredential(
+                Configuration.getGlobalConfiguration().get("AZURE_TEXT_ANALYTICS_API_KEY"))));
         }
         return builder;
     }