[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-4.5-21B-A3B-PT
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?

accuracy test:
https://github.com/vllm-project/vllm-ascend/actions/runs/19815806720?pr=4262

• vLLM version: v0.11.2
• vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.2

[github-actions]

👋 Hi! Thank you for contributing to the vLLM Ascend project. The following points will speed up your PR merge:‌‌

• A PR should do only one thing, smaller PRs enable faster reviews.
• Every PR should include unit tests and end-to-end tests ‌to ensure it works and is not broken by other future PRs.
• Write the commit message by fulfilling the PR description to help reviewer and future developers understand.

If CI fails, you can run linting and testing checks locally according Contributing and Testing.

[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.

[github-actions]

This pull request has conflicts, please resolve those before we can evaluate the pull request.