fix: Update Imports of torchao quantizer

[ParagEkbote]

Description

After the release of torchao 0.15.0, the config function which are used in the torchao quantizer have been deprecated and removed, instead being updated with a new class config. We can also view this in the release notes. I have updated the imports to reflect the changes. Could you please review?

cc: @minettekaum

Related Issue

Fixes #(issue number)

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

Additional Notes

[ParagEkbote]

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