chore(deps): pin grafana/security-github-actions action to 181cc17 #782

Job	Run time
Check whether there are things to scan	5s
Run zizmor / job-workflow-ref	12s
Run zizmor / Generate and upload zizmor results 🌈	22s
Run zizmor / Send zizmor metrics to Prometheus via Grafana Bench	11s
	50s

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