ISO-197: Add semgrep workflow #1

	# Name of this GitHub Actions workflow.
	name: Semgrep

	on:
	# Scan changed files in PRs (diff-aware scanning):
	pull_request: {}
	# Scan mainline branches and report all findings:
	push:
	branches: ["master", "main"]
	# Schedule the CI job (this method uses cron syntax):
	schedule:
	- cron: '20 21 * * *' # Sets Semgrep to scan every day at 21:20 UTC.
	# It is recommended to change the schedule to a random time.

	jobs:
	semgrep:
	# User definable name of this GitHub Actions job.
	name: semgrep/ci
	# If you are self-hosting, change the following `runs-on` value:
	runs-on: ubuntu-latest

	container:
	# A Docker image with Semgrep installed. Do not change this.
	image: semgrep/semgrep

	# Skip any PR created by dependabot or renovate:
	if: ${{ (github.actor != 'dependabot[bot]') && (github.actor != 'renovate[bot]') }}

	steps:
	# Fetch project source with GitHub Actions Checkout. Use either v3 or v4.
	- uses: actions/checkout@v4
	# Run the "semgrep ci" command on the command line of the docker image.
	- run: semgrep ci
	env:
	# Connect to Semgrep Cloud Platform through your SEMGREP_APP_TOKEN.
	# Generate a token from Semgrep Cloud Platform > Settings
	# and add it to your GitHub secrets.
	SEMGREP_APP_TOKEN: ${{ secrets.SEMGREP_APP_TOKEN }}

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