feat: Support lora for grpo workflow

[RayenTian]

What does this PR do ?

This PR consolidates three incremental changes:

• Makes the GRPO workflow runnable end-to-end.
• Aligns LoRA parameter-name mapping with vLLM’s LoRA manager to ensure adapter compatibility.
• Adds async and non-colocated lora support.

Issues

List issues that this PR closes (syntax):
close #1597

Usage

• You can potentially add a usage example below

bash tests/test_suites/llm/grpo-qwen3-8B-base-1n8g-fsdp2-lora.sh

Result

Co-located + Sync

Qwen/Qwen3-0.6B

Llama-3.2-3B-Instruct

Non Co-located + Sync

Qwen/Qwen3-0.6B

Llama-3.2-3B-Instruct

Async

Qwen/Qwen3-0.6B

Llama-3.2-3B-Instruct

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Additional Information

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