fix error if wasm-pack already installed #69

	name: CI

	on:
	pull_request:
	branches:
	- main

	jobs:
	test-and-lint:
	name: Unit Test and Lint
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Repo
	uses: actions/checkout@v3
	- uses: actions-rs/toolchain@v1
	with:
	components: clippy, rustfmt
	override: true
	toolchain: stable
	- uses: actions/cache@v3
	with:
	path: \|
	~/.cargo/bin/
	~/.cargo/registry/index/
	~/.cargo/registry/cache/
	~/.cargo/git/db/
	target/
	key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
	- name: Rustfmt
	uses: actions-rs/cargo@v1
	with:
	command: fmt
	args: --all -- --check --color always
	- name: Clippy
	uses: actions-rs/clippy-check@v1
	with:
	token: ${{ secrets.GITHUB_TOKEN }}
	args: --all-features
	- name: Install wasm-pack
	run: cargo install wasm-pack \|\| true # exits with a error code if wasm-pack is already installed
	- name: Setup Node.js 16.x
	uses: actions/setup-node@v3
	with:
	node-version: 16.x
	- name: Install Dependencies
	run: yarn --frozen-lockfile
	- name: Build
	run: yarn build
	- name: Run Tests
	run: yarn test

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