Incorrect NULL handling in lead window function (SQLancer)

[2010YOUY01]

Describe the bug

See the reproducer in datafusion-cli (compiled from the latest main, commit 0242767)

> create table t1(v1 int);
0 row(s) fetched.
Elapsed 0.015 seconds.

> insert into t1 values (1);
+-------+
| count |
+-------+
| 1     |
+-------+
1 row(s) fetched.
Elapsed 0.017 seconds.

> SELECT LEAD(NULL, 1, false) OVER () FROM t1;
Arrow error: Cast error: Casting from Boolean to Null not supported

To Reproduce

No response

Expected behavior

This query should be valid, NULL literal can be interpreted as a missing bool value, so 1st and 3rd arg in lead() function have the same type

postgres result:

postgres=# create table t1(v1 int);
iCREATE TABLE
postgres=# insert into t1 values (1);
INSERT 0 1
postgres=# SELECT LEAD(NULL, 1, false) OVER () FROM t1;
 lead 
------
 f
(1 row)

Additional context

Found by SQLancer #11030