Updating the policy file term

[lancewf]

🔩 Description: What code changed, and why?

Fixing event feed policy file filtering. In the UI the event type term for a policy file was incorrect.

👍 Definition of Done

Filtering by policy file event type works in the UI.

👟 How to Build and Test the Change

1. build components/automate-ui-devproxy && start_all_services && start_automate_ui_background && ui_logs
2. After the UI finish loading, create a policy file event with these two commands.
3. rfc_time=$(date --rfc-3339=seconds -d "$((RANDOM % 144)) hour ago" | sed 's/ /T/' | sed 's/\+.*/Z/');
4. cat components/ingest-service/examples/actions/policy_update.json | jq --arg rfc_time "$rfc_time" '.recorded_at = $rfc_time' | send_chef_data_raw lb,
5. Go to https://a2-dev.test/dashboards/event-feed and filter by the policy file event type.

✅ Checklist

• I have read the CONTRIBUTING document.
• Tests added/updated?
• Docs added/updated?
• All commits have been signed-off for the Developer Certification of Origin.