feat(github-action): Implement cfn-guard as a Github Action in TS #16

	name: Github Action CI
	on:
	push:
	paths:
	- 'action/**'
	- 'action.yml'
	pull_request:
	paths:
	- 'action/**'
	- 'action.yml'
	jobs:
	run-unit-tests:
	runs-on: ubuntu-latest
	defaults:
	run:
	working-directory: ./action
	steps:
	- uses: actions/checkout@v3
	- uses: actions/setup-node@v4.0.2
	with:
	node-version: '20'
	- run: npm install
	- run: npm run lint
	- run: npm run format:check
	- run: npm run test
	- run: npm run package
	# This will fail the workflow if the `dist/` directory is different than
	# expected.
	- name: Compare Directories
	id: diff
	run: \|
	if [ ! -d dist/ ]; then
	echo "Expected dist/ directory does not exist. See status below:"
	ls -la ./
	exit 1
	fi
	if [ "$(git diff --ignore-space-at-eol --text dist/ \| wc -l)" -gt "0" ]; then
	echo "Detected uncommitted changes after build. See status below:"
	git diff --ignore-space-at-eol --text dist/
	exit 1
	fi

	# If `dist/` was different than expected, upload the expected version as a
	# workflow artifact.
	- if: ${{ failure() && steps.diff.outcome == 'failure' }}
	name: Upload Artifact
	id: upload
	uses: actions/upload-artifact@v4
	with:
	name: dist
	path: dist/

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