Fix param mapping for Qwen2

[ChingTsai]

Description

• Resolves param_mapping.py conflicts introduced in this commit.

Tests

end2end test for qwen2.5-7b

Checklist

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• I have made or will make corresponding changes to the doc if needed, including adding new documentation pages to the relevant Table of Contents (toctree directive) as explained in our documentation.

[codecov]

Codecov Report

❌ Patch coverage is 15.38462% with 11 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...xtext/checkpoint_conversion/utils/param_mapping.py	15.38%	11 Missing ⚠️

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