Update minimum Python to 3.9 #1320

	name: CI

	on:
	push:
	branches:
	- main
	pull_request:

	env:
	PYTHON_VERSION: "3.9"

	jobs:
	pre-commit:
	name: Pre-commit
	runs-on: ubuntu-latest
	steps:
	- name: Check out the repository
	uses: actions/checkout@v4

	- name: Set up Python ${{ env.PYTHON_VERSION }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ env.PYTHON_VERSION }}

	- name: Install Poetry
	uses: abatilo/actions-poetry@v3.0.0
	with:
	poetry-version: 1.3.2

	- name: Install dependencies
	run: poetry install

	- name: Run pre-commit on all files
	run: \|
	poetry run pre-commit run --all-files --show-diff-on-failure --color=always

	- name: Run python-typing-update
	run: \|
	poetry run pre-commit run --hook-stage manual python-typing-update --all-files --show-diff-on-failure --color=always

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