Update GitHub Action `returntocorp/semgrep` to v1.97.0 (#5716) #32603

	name: Semgrep

	on:
	# Scan changed files in PRs (diff-aware scanning):
	pull_request: {}

	# Scan mainline, next and `dev/*` trunks to report all findings:
	push:
	branches:
	- main
	- canary
	- dev/*

	schedule:
	- cron: "30 0 1,15 * *" # scheduled for 00:30 UTC on both the 1st and 15th of the month

	jobs:
	semgrep:
	name: Scan

	# Change this in the event of future self-hosting of Action runner:
	runs-on: ubuntu-latest

	container:
	image: returntocorp/semgrep:1.97.0@sha256:a265d09a9ca712e6624aca09056304ce4314a695b7028d65c041dd53fd44c700

	# Skip any PR created by Dependabot to avoid permission issues:
	if: (github.actor != 'dependabot[bot]')

	steps:
	- uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
	name: Check-out Git project source

	- name: Run Semgrep
	run: semgrep ci --sarif --output=semgrep.sarif \|\| true
	env:
	SEMGREP_APP_TOKEN: ${{ secrets.SEMGREP_APP_TOKEN }}

	- name: Check SARIF file exists following Semgrep run
	id: sarif_file_check
	uses: andstor/file-existence-action@076e0072799f4942c8bc574a82233e1e4d13e9d6 # v3.0.0
	with:
	files: "semgrep.sarif"

	- name: Upload SARIF file for GitHub Advanced Security Dashboard
	uses: github/codeql-action/upload-sarif@f09c1c0a94de965c15400f5634aa42fac8fb8f88 # v3.27.5
	if: steps.sarif_file_check.outputs.files_exists == 'true'
	with:
	sarif_file: semgrep.sarif

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