Vint

Don't `set cpo&vim` if we're going to early exit #114

	name: Vint
	on: [push, pull_request]
	jobs:
	vint:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@master
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.10'
	- name: Setup dependencies
	run: pip install vim-vint
	- name: Run Vimscript Linter
	run: vint .

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