patch 8.2.1722: Vim9: cannot assign a lambda to a variable of type function

Problem:    Vim9: cannot assign a lambda to a variable of type function.
Solution:   Allow for assigning a partial to a variable of type function.
            (Naruhiko Nishino, closes #6996)

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1722,
 /**/
     1721,
 /**/