MINOR: cfgparse: Update for "cluster-secret" keyword for QUIC Retry

The QUIC Retry feature is disabled if no "cluster-secret" setting was set.
diff --git a/src/cfgparse.c b/src/cfgparse.c
index 976cd59..c123ff1 100644
--- a/src/cfgparse.c
+++ b/src/cfgparse.c
@@ -4010,8 +4010,8 @@
 	}
 
 	if (diag_no_cluster_secret)
-		ha_diag_warning("No cluster secret was set. The stateless reset feature"
-		                " is disabled for all QUIC bindings.\n");
+		ha_diag_warning("No cluster secret was set. The stateless reset and Retry"
+		                " features are disabled for all QUIC bindings.\n");
 
 	/*
 	 * Recount currently required checks.