Replace conda with pyenv to fix incorrect libstdc++ use in jammy CI. #8424

	name: Style Check
	permissions: {}

	on:
	workflow_dispatch:
	push:
	branches:
	- main
	pull_request:
	types: [opened, reopened, synchronize] # Rebuild on new pushes to PR

	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	style-check:
	permissions:
	contents: read
	runs-on: ubuntu-latest
	steps:
	- name: Checkout source code
	uses: actions/checkout@v4
	- name: Set up Python version
	uses: actions/setup-python@v5
	with:
	python-version: '3.8'
	- name: Install dependencies
	run: \|
	pip install -U clang-format~=10.0.0 yapf==0.30.0 nbformat
	- name: Run style check
	run: \|
	python util/check_style.py

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