[Test] Add accuracy nightly test for new models

[zhangxinyuehfad]

What this PR does / why we need it?

Add accuracy nightly test for new models：

PaddlePaddle/ERNIE-4.5-0.3B-PT
OpenBMB/MiniCPM-2B-dpo-bf16
LLM-Research/Molmo-7B-D-0924
LLM-Research/gemma-2-9b-it
LLM-Research/gemma-3-4b-it
Shanghai_AI_Laboratory/internlm-7b
llava-hf/llava-1.5-7b-hf

Does this PR introduce any user-facing change?

How was this patch tested?

• vLLM version: v0.11.0
• vLLM main: vllm-project/vllm@2918c1b

[github-actions]

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[gemini-code-assist]

Code Review

This pull request adds accuracy nightly tests for several new models by introducing their respective YAML configuration files and updating the main test list. Additionally, it modifies the test script to allow for configurable dtype settings. My review identified a critical issue with a filename mismatch that would cause a test to fail, and I've also provided a suggestion to improve code maintainability in the Python test script.