Bump postcss from 8.4.28 to 8.4.31 in /test/frameworks/remix-indie #402

	name: CI
	on: [push, pull_request]
	jobs:
	# run eslint and compare outputs with expected results
	test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- uses: pnpm/action-setup@v2
	with:
	version: latest
	- uses: actions/setup-node@v3
	with:
	node-version: 20
	cache: "npm"
	- uses: oven-sh/setup-bun@v1
	with:
	bun-version: latest
	- uses: superfly/flyctl-actions/setup-flyctl@master
	- run: npm ci
	- run: npm run eslint
	- run: npm test

	# test each framework can actually build
	test-frameworks:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	framework:
	- express
	- fastify
	- gatsby
	- nest
	- next-yarn
	- nuxt
	- remix-indie
	- adonisjs
	steps:
	- uses: actions/checkout@v3
	- uses: docker/setup-buildx-action@v2
	- run: docker buildx build . --build-arg NODE_VERSION=20 --build-arg YARN_VERSION=1.22.21
	working-directory: test/frameworks/${{ matrix.framework }}

	# test yarn3 framework can actually build
	test-frameworks-yarn3:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	framework:
	- next-yarn3
	steps:
	- uses: actions/checkout@v3
	- uses: docker/setup-buildx-action@v2
	- run: docker buildx build . --build-arg NODE_VERSION=18 --build-arg YARN_VERSION=3.5.1
	working-directory: test/frameworks/${{ matrix.framework }}

	# test alpine can actually build
	test-alpine:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	base:
	- alpine
	steps:
	- uses: actions/checkout@v3
	- uses: docker/setup-buildx-action@v2
	- run: docker buildx build . --build-arg NODE_VERSION=20 --build-arg YARN_VERSION=1.22.21
	working-directory: test/base/${{ matrix.base }}

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