patch 9.0.0069: leaking memory when using text prop with inserted text

Problem:    Leaking memory when using text prop with inserted text.
Solution:   Clear the growarray with text.

src/version.c

@@ -735,6 +735,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    69,
 /**/
     68,
 /**/