[ci, megatron] test: Add Qwen3 Megatron+Mindspeed Ascend NPU CI

[wlf-darkmatter]

What does this PR do?

Add Qwen3 Megatron+Mindspeed Ascend NPU CI

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[wlf-darkmatter]

Since the existing test scripts all use small models like 0.5B or 0.6B, while the smallest Qwen3-MoE model is 30B, this would significantly increase the runtime when pulling the model. Additionally, network issues could make the CI less stable. May I use a fully dummy model with weights trimmed to approximately 1B instead? @tardis-key

[tardis-key]

Since the existing test scripts all use small models like 0.5B or 0.6B, while the smallest Qwen3-MoE model is 30B, this would significantly increase the runtime when pulling the model. Additionally, network issues could make the CI less stable. May I use a fully dummy model with weights trimmed to approximately 1B instead? @tardis-key

Using a trimmed model is a good idea. But the current config system requires a path, and I’m not sure if a dummy model will work. If it doesn’t, we can make it happen by uploading the trimmed model to Hugging Face. @wlf-darkmatter

[CLAassistant]

All committers have signed the CLA.

[wlf-darkmatter]

self test OK