fix: derive custom nullability for spark bit_shift

[kumarUjjawal]

Which issue does this PR close?

• Closes spark bit_shift need to have custom nullability #19149.
• Part of EPIC: fix nullability report for spark expression #19144

Rationale for this change

As stated in the original issue the UDF uses the default is_nullable which is always true which is not the case.

What changes are included in this PR?

• bit_shift now reports schema using return_field_from_args
• Added unit tests

Are these changes tested?

• All original tests pass
• Added new unit tests for the changes

Are there any user-facing changes?

[rluvaton]

I verified that spark shift left and right nullability are depending on the children:

ShiftLeft and ShiftRight:
https://github.com/apache/spark/blob/a189a450e9906362749e3ad3d022f593a2a562e4/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/mathExpressions.scala#L1310-L1365

BitShiftOperation:
https://github.com/apache/spark/blob/a189a450e9906362749e3ad3d022f593a2a562e4/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/mathExpressions.scala#L1273-L1308

BinaryExpression:
https://github.com/apache/spark/blob/a189a450e9906362749e3ad3d022f593a2a562e4/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Expression.scala#L711