User - Filter all the users whose MFA is not enabled

The following example policy will filter and tag the users whose multi-factor authentication is not enabled

policies:
- name: filter-tag-user-without-mfa
  description: |
    Filter and tag users whose MFA is not enabled
  resource: oci.user
  filters:
   - type: attributes
     key: is_mfa_activated
     value: false
  actions:
   - type: update
     freeform_tags:
        'mfa_activated' : 'false'