Expand tests for `ModuleSparsificationInfo`

[dsikka]

Is your feature request related to a problem? Please describe.

• Expand testing coverage to verify values returned from class defined in:

  llm-compressor/src/llmcompressor/pytorch/utils/sparsification.py

  Line 33 in 7bb517f

  class ModuleSparsificationInfo:

Describe the solution you'd like

• Tests validating the properties returned for each parameter related value