fix: resolve audio lip sync not working issue

[LoS-Light]

🐞 Issue

Audio lip sync is not working after the release "Cubism 5 SDK for Unity R4".

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🔁 Steps to Reproduce

1. Create a new Unity project.
2. Download the latest SDK from the official website and import it.
3. Open the scene Live2D/Cubism/Samples/Animation/Animation.unity.
4. Follow the official tutorial to configure the components:
   [https://docs.live2d.com/en/cubism-sdk-tutorials/lipsync/]
5. Play the scene — you will notice that the audio plays, but the model’s mouth does not move.

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🛠️ Cause & Fix

The issue is caused by an incorrect parameter being passed in the following method:
174b795#diff-27d85b246b2b472ef331fc967de9266d893d4afcfd945823c9829f51230f17f2

File: CubismParameterExtensionMethods.cs
Line: 152

Following change will fix the issue:

- self[i].OverrideValue(self[i].Value, weight);
+ self[i].OverrideValue(value, weight);

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Thank you very much for your great work and support