Replace `piscina` with `tinypool` #195

	name: E2E tests

	on:
	push:
	pull_request:

	jobs:
	prettier:
	name: Prettier
	strategy:
	matrix:
	additional-options: ["--maxWorkers=2", "--runInBand"]
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	with:
	path: jest-light-runner

	- name: Checkout "prettier"
	uses: actions/checkout@v3
	with:
	repository: prettier/prettier
	path: prettier

	- name: Setup Node.js
	uses: actions/setup-node@v3

	- name: Build
	run: \|
	yarn install --immutable
	yarn build
	working-directory: prettier

	- name: Setup Node.js v14
	uses: actions/setup-node@v3
	with:
	node-version: "14"

	- name: Update jest-light-runner
	run: \|
	yarn up jest-light-runner@file:../jest-light-runner
	working-directory: prettier

	- name: Run tests
	run: \|
	yarn jest tests/format ${{ matrix.additional-options }}
	working-directory: prettier

	babel:
	name: Babel
	runs-on: ubuntu-latest
	strategy:
	matrix:
	additional-options: ["--maxWorkers=2", "--runInBand"]
	steps:
	- name: Setup Node.js
	uses: actions/setup-node@v3

	- name: Checkout
	uses: actions/checkout@v3
	with:
	path: jest-light-runner

	- name: Checkout "babel"
	uses: actions/checkout@v3
	with:
	repository: babel/babel
	path: babel

	- name: Build
	run: \|
	yarn install --immutable
	make build-no-bundle
	working-directory: babel

	- name: Update jest-light-runner
	run: \|
	yarn up jest-light-runner@file:../jest-light-runner
	working-directory: babel

	- name: Disable Babel's setupFilesAfterEnv
	run: \|
	echo "" > test/testSetupFile.js
	working-directory: babel

	- name: Test
	run: \|
	yarn jest babel-core babel-preset-env ${{ matrix.additional-options }}
	working-directory: babel

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