chore(sage-monorepo): test new Sonar PR workflow #5

	name: Sonar Scan

	on:
	# Warning: using the pull_request_target event without the cautionary measures may allow
	# unauthorized GitHub users to open a “pwn request” and exfiltrate secrets.
	pull_request_target:
	types: [opened, synchronize, reopened, labeled]

	jobs:
	authorize:
	environment:
	${{ github.event_name == 'pull_request_target' &&
	github.event.pull_request.head.repo.full_name != github.repository &&
	'sonar' \|\| 'internal' }}
	runs-on: ubuntu-latest
	steps:
	- run: true

	sonar:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	# We need to fetch all branches and commits so that Nx affected has a base to compare
	# against.
	fetch-depth: 0
	# By default, actions/checkout@v4 will checkout the main branch instead of the merge
	# commit when when using pull_request_target. It is currently difficult to checkout the
	# merge commit in this context. The current solution is to checkout the PR HEAD insteand
	# and enable the branch protection rule "Require branches to be up to date before
	# merging".
	ref: ${{ github.event.pull_request.head.sha }}

	- name: Derive appropriate SHAs for base and head for `nx affected` commands
	uses: nrwl/nx-set-shas@v4

	- name: Set up the dev container
	env:
	SONAR_PULL_REQUEST_NUMBER: ${{ github.event.pull_request.number }}
	SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
	uses: ./.github/actions/setup-dev-container

	- name: Scan the affected projects with Sonar
	run: \|
	devcontainer exec --workspace-folder ../sage-monorepo bash -c ". ./dev-env.sh \
	&& nx affected --target=sonar"

Provide feedback