test: Use list collections to check for auth instead of health check

Signed-off-by: Anush008 <anushshetty90@gmail.com>

Author: Anush008

src/test/java/io/qdrant/client/ApiKeyTest.java

@@ -9,6 +9,7 @@
 import io.grpc.ManagedChannel;
 import io.grpc.Status;
 import io.grpc.StatusRuntimeException;
+import io.qdrant.client.grpc.Collections.ListCollectionsRequest;
 import io.qdrant.client.grpc.QdrantOuterClass.HealthCheckReply;
 import io.qdrant.client.grpc.QdrantOuterClass.HealthCheckRequest;
 import java.util.concurrent.ExecutionException;
@@ -61,7 +62,8 @@ public void client_without_api_key_cannot_connect() {
       ExecutionException executionException =
           assertThrows(
               ExecutionException.class,
-              () -> grpcClient.qdrant().healthCheck(HealthCheckRequest.getDefaultInstance()).get());
+              () ->
+                  grpcClient.collections().list(ListCollectionsRequest.getDefaultInstance()).get());
       Throwable cause = executionException.getCause();
       assertEquals(StatusRuntimeException.class, cause.getClass());
       StatusRuntimeException statusRuntimeException = (StatusRuntimeException) cause;