Update common.py

[NeKoooo233]

Fixed a bug. When using a higher version of tensorrt and val.py to verify the model, the following problems may occur: getPluginCreator could not find plugin: InstanceNormalization_TRT version: 1
Serialization assertion creator failed.Cannot deserialize plugin since corresponding IPluginCreator not found in Plugin Registry
in common.py context = model.create_execution_context()
AttributeError: 'NoneType' object has no attribute 'create_execution_context'

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🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Enhanced YOLOv5 model loading support for NVIDIA's TensorRT.

📊 Key Changes

• Added initialization for TensorRT plugins within the model loading process.

🎯 Purpose & Impact

• Purpose: This change ensures that all necessary TensorRT plugins are initialized when a model is loaded, which is crucial for compatibility and performance when using NVIDIA's optimization tools.
• Impact: Users leveraging YOLOv5 with NVIDIA TensorRT for inference can expect smoother deployments and potentially improved performance, as all required plugins are correctly initialized. This update is especially beneficial for those working in environments where advanced optimizations are necessary for speed and efficiency. 🚀

[github-actions]

Thank you for your submission, we really appreciate it. Like many open-source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution. You can sign the CLA by just posting a Pull Request Comment same as the below format.

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2 out of 3 committers have signed the CLA.
✅ (glenn-jocher)[https://github.com/glenn-jocher]
✅ (UltralyticsAssistant)[https://github.com/UltralyticsAssistant]
❌ @NeKoooo233
_{You can retrigger this bot by commenting recheck in this Pull Request. Posted by the CLA Assistant Lite bot.}

[github-actions]

👋 Hello @NeKoooo233, thank you for submitting a YOLOv5 🚀 PR! To allow your work to be integrated as seamlessly as possible, we advise you to:

• ✅ Verify your PR is up-to-date with ultralytics/yolov5 master branch. If your PR is behind you can update your code by clicking the 'Update branch' button or by running git pull and git merge master locally.
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• ✅ Reduce changes to the absolute minimum required for your bug fix or feature addition. "It is not daily increase but daily decrease, hack away the unessential. The closer to the source, the less wastage there is." — Bruce Lee

[glenn-jocher]

@NeKoooo233 please accept the CLA by writing a new issue with:

I have read the CLA Document and I sign the CLA

[NeKoooo233]

@NeKoooo233 please accept the CLA by writing a new issue with:

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OK

[NeKoooo233]

I have read the CLA Document and I sign the CLA.