fix(v15): loaders for styles are not deduplicated when experiments.css is true #169

	name: 'ci'
	on:
	push:
	branches:
	- master
	pull_request:
	branches:
	- master
	jobs:
	unit-test:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os:
	- ubuntu-latest
	- macos-latest
	- windows-latest
	fail-fast: false
	name: "Unit Test: ${{ matrix.os }}"
	steps:
	- uses: actions/checkout@v2

	- name: Install pnpm
	uses: pnpm/action-setup@v2
	with:
	version: 8

	- name: Set node version to 16
	uses: actions/setup-node@v2
	with:
	node-version: 16
	cache: 'pnpm'

	- run: pnpm install

	- name: Run unit tests
	run: pnpm run test

	- name: Set up webpack 5 tests
	run: npx json -f package.json -I -e "this.resolutions = {}, this.resolutions.webpack = '^5.0.0', this.devDependencies.webpack = '^5.0.0' "

	- name: Install webpack 5
	run: pnpm install --no-frozen-lockfile

	- name: Run unit tests for webpack 5
	run: pnpm run test && pnpm run test:match-resource

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