Add vulnerability scanning #1

	name: Vulnerability scan
	on:
	push:
	branches:
	- release-candidate
	pull_request:
	# The branches below must be a subset of the branches above
	branches:
	- release-candidate
	workflow_dispatch:
	jobs:
	vulnerability-scan:
	permissions:
	contents: read
	security-events: write
	name: Scan for vulnerabilities
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Build an image from Dockerfile
	run: \|
	docker build -t ghcr.io/${{ github.repository_owner }}/gs64:${{ github.sha }} ./source/

	- name: Run Trivy vulnerability scanner
	uses: aquasecurity/trivy-action@master
	with:
	image-ref: ghcr.io/${{ github.repository_owner }}/gs64:${{ github.sha }}
	format: 'sarif'
	output: 'trivy-results.sarif'
	severity: 'CRITICAL,HIGH'
	limit-severities-for-sarif: true
	ignore-unfixed: true

	- name: Upload Trivy scan results to GitHub Security tab
	uses: github/codeql-action/upload-sarif@v3
	with:
	sarif_file: 'trivy-results.sarif'

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