patch 9.0.0627: "const" and "final" both make the type a constant

Problem:    "const" and "final" both make the type a constant. (Daniel
            Steinberg)
Solution:   Only have "const" make the type a constant.
diff --git a/src/version.c b/src/version.c
index 40dad23..a2e66b2 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    627,
+/**/
     626,
 /**/
     625,