TST: add test to confirm primitive input_types (#2086)

[hi-riddhi]

What does this PR do?

Adds a test under featuretools\tests\primitive_tests\test_primitive_input_types.py to confirm that primitives in FeatureTools behave correctly regarding their input_types.

What’s Covered?

• ✅ Parametrized tests for MultiplyNumericScalar and Year primitives.
• ✅ Checks expected dtype in feature matrix output.

Why?

Helps detect future regressions in how primitives declare and validate input types.

How to Run?

pytest featuretools/tests/test_primitive_input_types.py

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[hi-riddhi]

What does this PR do?
Adds a test under featuretools\tests\primitive_tests\test_primitive_input_types.py to confirm that primitives in FeatureTools behave correctly regarding their input_types.

What’s Covered?
✅ Parametrized tests for MultiplyNumericScalar and Year primitives.
✅ Checks expected dtype in feature matrix output.
Why?
Helps detect future regressions in how primitives declare and validate input types.

How to Run?
pytest featuretools/tests/test_primitive_input_types.py