Move ComplianceFrameworkChangedEvent handler to SyncPolicyEventWorker

What does this MR do and why?

This MR moves the event handling logic to Security::SyncPolicyEventWorker from Security::RefreshComplianceFrameworkSecurityPoliciesWorker to keep the policy sync logic in a central place.

The event subscription will be updated in !191779 (merged)

1. Add parameter hash to SyncProjectPolicyWorker (!192089 - merged)
2. ➡️ Move ComplianceFrameworkChangedEvent handler to... (!191773 - merged)
3. Update ComplianceFrameworkChangedEvent subscrip... (!191779 - merged)
4. Update SyncProjectPolicyWorker to handle events (!191788 - merged)

References

• #538759 (comment 2517540249)

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