chore: add `check_format.yml` #2

	---
	name: check_format

	# yamllint disable-line rule:truthy
	on:
	workflow_dispatch:
	push:
	branches:
	- main
	pull_request:

	jobs:
	check_format:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Init git
	run: \|
	git init
	git status

	- name: Check code format
	uses: julia-actions/julia-format@master
	with:
	args: -v .

Provide feedback