[CI/Build] drop support for Python 3.8 EOL (#8464)

Signed-off-by: Aaron Pham <contact@aarnphm.xyz>

vllm/model_executor/models/gemma2.py

-# coding=utf-8
 # Copyright 2024 The vLLM team.
 # Copyright 2024 Google Inc. HuggingFace Inc. team. All rights reserved.
 #

vllm/model_executor/models/glm4_vision_encoder.py

-# coding=utf-8
 # Adapted from
 # https://github.com/THUDM/GLM-4
 """Inference-only GLM-4v model visual encoder compatible with THUDM weights."""

vllm/model_executor/models/gpt2.py

-# coding=utf-8
 # Adapted from
 # https://github.com/huggingface/transformers/blob/v4.28.0/src/transformers/models/gpt2/modeling_gpt2.py
 # Copyright 2023 The vLLM team.

vllm/model_executor/models/gpt_bigcode.py

-# coding=utf-8
 # Adapted from
 # https://github.com/huggingface/transformers/blob/v4.28.0/src/transformers/models/gpt2/modeling_gpt2.py
 # Copyright 2023 The vLLM team.

vllm/model_executor/models/gpt_j.py

-# coding=utf-8
 # Adapted from
 # https://github.com/huggingface/transformers/blob/v4.28.0/src/transformers/models/gptj/modeling_gptj.py
 # Copyright 2023 The vLLM team.

vllm/model_executor/models/gpt_neox.py

-# coding=utf-8
 # Adapted from
 # https://github.com/huggingface/transformers/blob/v4.28.0/src/transformers/models/gpt_neox/modeling_gpt_neox.py
 # Copyright 2023 The vLLM team.

vllm/model_executor/models/granite.py

-# coding=utf-8
 # Adapted from
 # https://github.com/huggingface/transformers/blob/v4.28.0/src/transformers/models/llama/modeling_llama.py
 # Copyright 2023 The vLLM team.

vllm/model_executor/models/granitemoe.py

-# coding=utf-8
 # Adapted from
 # https://github.com/huggingface/transformers/blob/v4.28.0/src/transformers/models/llama/modeling_llama.py
 # Copyright 2023 The vLLM team.

vllm/model_executor/models/idefics2_vision_model.py

-# coding=utf-8
-
 # adapted from https://github.com/huggingface/transformers/blob/v4.43.2/src/transformers/models/idefics2/modeling_idefics2.py
 # Copyright 2024 The vLLM team.
 # Copyright 2024 the HuggingFace Inc. team. All rights reserved.

vllm/model_executor/models/internlm2.py

-# -*- coding: utf-8 -*-
 from functools import partial
 from typing import Any, Dict, Iterable, List, Optional, Tuple, Union
 

vllm/model_executor/models/internlm2_ve.py

-# -*- coding: utf-8 -*-
 from typing import List, Optional, Tuple, Union
 
 import torch

vllm/model_executor/models/jais.py

-# coding=utf-8
 # Adapted from
 # https://huggingface.co/inceptionai/jais-30b-chat-v3/blob/main/modeling_jais.py
 # Copyright 2023 The vLLM team.

vllm/model_executor/models/jamba.py

-# coding=utf-8
 """Inference-only Jamba model."""
 from typing import Iterable, List, Optional, Tuple
 

vllm/model_executor/models/llama.py

-# coding=utf-8
 # Adapted from
 # https://github.com/huggingface/transformers/blob/v4.28.0/src/transformers/models/llama/modeling_llama.py
 # Copyright 2023 The vLLM team.

vllm/model_executor/models/mamba.py

-# coding=utf-8
 """PyTorch MAMBA model."""
 from typing import Iterable, List, Optional, Tuple
 

vllm/model_executor/models/minicpm.py

-# coding=utf-8
 # Adapted from
 # https://github.com/huggingface/transformers/blob/v4.28.0/src/transformers/models/llama/modeling_llama.py
 # Copyright 2023 The vLLM team.

vllm/model_executor/models/minicpm3.py

-# coding=utf-8
 # Adapted from
 # https://github.com/huggingface/transformers/blob/v4.28.0/src/transformers/models/llama/modeling_llama.py
 # Copyright 2024 The ModelBest team.

vllm/model_executor/models/minicpmv.py

-# coding=utf-8
 # Adapted from
 # https://github.com/huggingface/transformers/blob/v4.28.0/src/transformers/models/llama/modeling_llama.py
 # Copyright 2023 The vLLM team.

vllm/model_executor/models/mixtral.py

-# coding=utf-8
 # Adapted from
 # https://github.com/huggingface/transformers/blob/v4.28.0/src/transformers/models/llama/modeling_llama.py
 # Copyright 2023 The vLLM team.

vllm/model_executor/models/mixtral_quant.py

-# coding=utf-8
 # Adapted from
 # https://github.com/huggingface/transformers/blob/v4.28.0/src/transformers/models/llama/modeling_llama.py
 # Copyright 2023 The vLLM team.