patch 8.2.2373: Vim9: list assignment only accepts a number index

Problem:    Vim9: list assignment only accepts a number index.
Solution:   Accept "any" and do a runtime type check. (closes #7694)
diff --git a/src/version.c b/src/version.c
index 3a88080..f1b7280 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2373,
+/**/
     2372,
 /**/
     2371,