Fixed HW accelerated SSSE3 shuffle capability detection for NET 6.0 and older

[Seramis]

Description

Corrected the hardware acceleration check to use Ssse3.IsSupported instead of Sse3.IsSupported. The byte-level shuffling instruction (pshufb) was introduced in the Supplemental SSE3 (SSSE3) instruction set, and relying on the standard SSE3 flag would cause a NotImplementedException on .NET 6.0 and older when running on hardware that lacks the supplemental extensions.

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update
• Other (please specify):

Checklist

• The PR is submitted to the correct branch (main).
• My code follows the project's coding style. (.editorconfig)
• I have commented my code, particularly in hard-to-understand areas and public interfaces.
• I have added or updated tests for the changes I made.
• All new and existing tests passed.
• I have updated the documentation where applicable.