patch 9.0.0548: reduce() with a compiled lambda could be faster

Problem:    reduce() with a compiled lambda could be faster.
Solution:   Call eval_expr_typval() instead of call_func() directly.
diff --git a/src/version.c b/src/version.c
index 2f36c39..2ad2658 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    548,
+/**/
     547,
 /**/
     546,