Add Qwen handler and fix mean_latency calculation error for OSS models

[zhangch-ss]

Hello, there may be an anomaly in the mean latency calculation of the OSS model, and I have attempted to fix it.

[zhangch-ss]

line 1045, berkeley-function-call-leaderboard/bfcl/eval_checker/eval_runner_helper.py

[zhangch-ss]

Qwen handler is also added in this PR

[zhangch-ss]

You may need to modify it according to the actual situation

"Qwen/Qwen2-1.5B-Instruct": 100,
"Qwen/Qwen2-7B-Instruct": 100,

OSS_LATENCY = {
    "deepseek-ai/deepseek-coder-6.7b-instruct": 909,
    "google/gemma-7b-it": 95,
    "NousResearch/Hermes-2-Pro-Mistral-7B": 135,
    "NousResearch/Hermes-2-Pro-Llama-3-8B": 77,
    "NousResearch/Hermes-2-Theta-Llama-3-8B": 73,
    "NousResearch/Hermes-2-Theta-Llama-3-70B": 716,
    "NousResearch/Hermes-2-Pro-Llama-3-70B": 674,
    "meta-llama/Meta-Llama-3-8B-Instruct": 73,
    "meta-llama/Meta-Llama-3-70B-Instruct": 307,
    "gorilla-openfunctions-v2": 83,
    "THUDM/glm-4-9b-chat": 223,
    "Qwen/Qwen2-1.5B-Instruct": 100,
    "Qwen/Qwen2-7B-Instruct": 100,
}

[zhangch-ss]

Now it supports the newly released Qwen2.5

[HuanzhiMao]

Apologize for the long delay. Will definitely take a look after the Monday ICLR deadline.

[zhangch-ss]

Apologize for the long delay. Will definitely take a look after the Monday ICLR deadline.

thanks, hope all is well