Bump postcss from 8.4.30 to 8.4.31 #32

	name: CI
	on:
	push:
	branches: [master]
	pull_request:

	jobs:
	lint:
	runs-on: ubuntu-22.04
	strategy:
	matrix:
	node: [18]
	steps:
	- uses: actions/checkout@v3

	- name: Set up Node ${{ matrix.node }}
	uses: actions/setup-node@v3
	with:
	node-version: ${{ matrix.node }}

	# https://github.com/actions/cache/blob/v3.0.11/examples.md#node---yarn-2
	- name: Get yarn cache directory path
	id: yarn-cache-dir-path
	run: echo "dir=$(yarn config get cacheFolder)" >> $GITHUB_OUTPUT
	- uses: actions/cache@v3
	id: yarn-cache # use this to check for `cache-hit` (`steps.yarn-cache.outputs.cache-hit != 'true'`)
	with:
	path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
	key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
	restore-keys: \|
	${{ runner.os }}-yarn-

	- name: Install dependencies
	run: \|
	yarn install --immutable
	- name: Check formatting
	run: \|
	yarn prettier --check .
	- name: Typecheck
	run: \|
	yarn typecheck
	- name: Lint
	run: \|
	yarn lint --max-warnings=0

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