ci: add CI workflow to check for grammar errors #514

	# This workflow runs the tests with code coverage to analyze how much
	# Solidity code in the smart contracts is covered by the tests.
	# It then submit the code coverage report to coveralls.io.

	name: Solidity Code coverage

	env:
	# 4GB of memory to prevent max heap size error when running code coverage
	NODE_OPTIONS: "--max_old_space_size=4096"

	on:
	pull_request:
	branches:
	- "develop"
	types:
	- closed

	jobs:
	coverage:
	runs-on: ubuntu-latest
	if: github.event.pull_request.merged == true
	steps:
	- uses: actions/checkout@v3

	- name: Use Node.js v20.x
	uses: actions/setup-node@v4
	with:
	node-version: "20.x"
	cache: "npm"

	- name: Install dependencies
	if: steps.build-cache.outputs.cache-hit != 'true'
	run: npm ci

	# This will also generate the Typechain types used by the Chai tests
	- name: Build contract artifacts
	run: npx hardhat compile

	- name: Run tests with coverage
	run: npm run test:coverage

	- name: Upload to Coveralls
	uses: coverallsapp/github-action@master
	with:
	path-to-lcov: ./coverage/lcov.info
	github-token: ${{ secrets.GITHUB_TOKEN }}

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