Use a more reasonnable boun for Http2MYRServerTest

Author: vietj

vertx-core/src/test/java/io/vertx/tests/http/Http2MYRServerTest.java

@@ -41,6 +41,7 @@
 import io.netty.handler.codec.http2.Http2Settings;
 import io.vertx.core.http.HttpServer;
 import io.vertx.core.http.HttpServerOptions;
+import io.vertx.test.core.Repeat;
 import org.junit.Test;
 
 import java.net.InetSocketAddress;
@@ -195,6 +196,6 @@ public ChannelFuture connect(int port, String host, BiConsumer<ChannelHandlerCon
 
     // Check the number of rst frame received before getting a go away
     assertEquals(receivedRstFrames.get(), maxRstFramePerWindow + 1);
-    assertEquals(maxInflightRequests.get(), maxRstFramePerWindow + 1);
+    assertTrue(maxInflightRequests.get() <= 2 * maxRstFramePerWindow );
   }
 }