[Windowing] Crash when a window partition has null-value

[ohaibbq]

WITH finishers AS
 (SELECT 'Sophia Liu' as name,
  TIMESTAMP '2016-10-18 2:51:45+00' as finish_time,
  'F30-34' as division
  UNION ALL SELECT 'Nilly Nada', TIMESTAMP '2016-10-18 3:10:14+00', null)
SELECT name,
  FORMAT_TIMESTAMP('%X', finish_time) AS finish_time,
  division,
  LEAD(name, 2, 'Nobody')
    OVER (PARTITION BY division ORDER BY finish_time ASC) AS two_runners_back
FROM finishers

--- FAIL: TestQuery (0.01s)
    --- FAIL: TestQuery/lead_with_default (0.01s)
panic: interface conversion: interface is nil, not internal.Value [recovered]
	panic: interface conversion: interface is nil, not internal.Value

goroutine 6 [running]:
testing.tRunner.func1.2({0x1021e0de0, 0xc0006acff0})
	/usr/local/Cellar/go/1.21.6/libexec/src/testing/testing.go:1545 +0x238
testing.tRunner.func1()
	/usr/local/Cellar/go/1.21.6/libexec/src/testing/testing.go:1548 +0x397
panic({0x1021e0de0?, 0xc0006acff0?})
	/usr/local/Cellar/go/1.21.6/libexec/src/runtime/panic.go:914 +0x21f
github.com/goccy/go-zetasqlite/internal.parseWindowOptions({0xc0003eb680, 0x7, 0xc0006ac8a0?})
	/Users/danhansen/go/github.com/Recidiviz/go-zetasqlite/internal/function_window_option.go:317 +0x4d9
github.com/goccy/go-zetasqlite/internal.(*WindowAggregator).Step(0xc0006ac810, {0xc0003eb380?, 0x1?, 0x100073373?})
	/Users/danhansen/go/github.com/Recidiviz/go-zetasqlite/internal/function_bind.go:139 +0x53
reflect.Value.call({0x1021e4c60?, 0xc0006ac810?, 0x1?}, {0x1023b934f, 0x4}, {0xc0001eee40, 0x8, 0x1026948e8?})
	/usr/local/Cellar/go/1.21.6/libexec/src/reflect/value.go:596 +0xce7
reflect.Value.Call({0x1021e4c60?, 0xc0006ac810?, 0x8?}, {0xc0001eee40?, 0x0?, 0x1021cddc0?})
	/usr/local/Cellar/go/1.21.6/libexec/src/reflect/value.go:380 +0xb9
github.com/mattn/go-sqlite3.(*aggInfo).Step(0xc000708c80, 0xc000001bc0?, {0x60000376c660, 0x8, 0x8})
	/Users/danhansen/go/pkg/mod/github.com/mattn/go-sqlite3@v1.14.16/sqlite3.go:466 +0xde
github.com/mattn/go-sqlite3.stepTrampoline(0x1052bea68?, 0xd745?, 0x60000376c660)
	/Users/danhansen/go/pkg/mod/github.com/mattn/go-sqlite3@v1.14.16/callback.go:46 +0x6b
github.com/mattn/go-sqlite3._Cfunc__sqlite3_step_internal(0x7faccb404d10)
	_cgo_gotypes.go:366 +0x47
github.com/mattn/go-sqlite3.(*SQLiteRows).nextSyncLocked.func1(0x10001e708?)
	/Users/danhansen/go/pkg/mod/github.com/mattn/go-sqlite3@v1.14.16/sqlite3.go:2186 +0x45
github.com/mattn/go-sqlite3.(*SQLiteRows).nextSyncLocked(0xc000112360, {0xc000034940, 0x4, 0xc0000bda68?})
	/Users/danhansen/go/pkg/mod/github.com/mattn/go-sqlite3@v1.14.16/sqlite3.go:2186 +0x37
github.com/mattn/go-sqlite3.(*SQLiteRows).Next(0xc000112360, {0xc000034940?, 0x4, 0x4})
	/Users/danhansen/go/pkg/mod/github.com/mattn/go-sqlite3@v1.14.16/sqlite3.go:2163 +0x2c8
database/sql.(*Rows).nextLocked(0xc0000ee3f0)
	/usr/local/Cellar/go/1.21.6/libexec/src/database/sql/sql.go:3019 +0x107
database/sql.(*Rows).Next.func1()
	/usr/local/Cellar/go/1.21.6/libexec/src/database/sql/sql.go:2994 +0x29
database/sql.withLock({0x10267aad0, 0xc0000ee428}, 0xc0000bdb88)
	/usr/local/Cellar/go/1.21.6/libexec/src/database/sql/sql.go:3502 +0x82
database/sql.(*Rows).Next(0xc0000ee3f0)
	/usr/local/Cellar/go/1.21.6/libexec/src/database/sql/sql.go:2993 +0x85
github.com/goccy/go-zetasqlite/internal.(*Rows).Next(0xc0000347c0, {0xc0000348c0, 0x4, 0x4})
	/Users/danhansen/go/github.com/Recidiviz/go-zetasqlite/internal/rows.go:73 +0x59
database/sql.(*Rows).nextLocked(0xc0000ee480)
	/usr/local/Cellar/go/1.21.6/libexec/src/database/sql/sql.go:3019 +0x107
database/sql.(*Rows).Next.func1()
	/usr/local/Cellar/go/1.21.6/libexec/src/database/sql/sql.go:2994 +0x29
database/sql.withLock({0x10267aad0, 0xc0000ee4b8}, 0xc0000bddb8)
	/usr/local/Cellar/go/1.21.6/libexec/src/database/sql/sql.go:3502 +0x82
database/sql.(*Rows).Next(0xc0000ee480)
	/usr/local/Cellar/go/1.21.6/libexec/src/database/sql/sql.go:2993 +0x85
github.com/goccy/go-zetasqlite_test.TestQuery.func2(0xc000502340)
	/Users/danhansen/go/github.com/Recidiviz/go-zetasqlite/query_test.go:5120 +0x294
testing.tRunner(0xc000502340, 0xc0000ee1b0)
	/usr/local/Cellar/go/1.21.6/libexec/src/testing/testing.go:1595 +0xff
created by testing.(*T).Run in goroutine 27
	/usr/local/Cellar/go/1.21.6/libexec/src/testing/testing.go:1648 +0x3ad