Bump rollup, @rollup/plugin-commonjs, @rollup/plugin-node-resolve and @rollup/plugin-virtual #108

	name: Continuous integration
	on: pull_request
	jobs:
	ci:
	runs-on: ubuntu-20.04
	steps:
	- name: Checkout
	uses: actions/checkout@v2
	- name: Cache the node_modules dir
	uses: actions/cache@v2
	with:
	path: node_modules
	key: ${{ runner.os }}-node_modules-${{ hashFiles('package-lock.json') }}
	- name: Install
	run: \|
	sudo apt-get install clang-format ninja-build
	npm install
	- name: Build library
	run: make lib
	- name: Build examples
	run: make examples
	- name: Typecheck
	run: make typecheck
	- name: Check formatting
	run: make checkformat
	- name: Run tests
	run: make test

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