Add Okta Verify to IT workstations (#39145)

## Summary
- Add Okta Verify for macOS as self-service software for IT department
members

## Changes
- Added `okta-verify/darwin` to workstations.yml configuration
- Configured as self-service for IT department only

## Test plan
- [x] Verify configuration syntax is valid
- [ ] Confirm Okta Verify appears in self-service for IT team members
- [ ] Verify it does not appear for non-IT department members

it-and-security/teams/workstations.yml

@@ -281,6 +281,10 @@ software:
         - Apple Silicon macOS hosts
     - slug: microsoft-teams/darwin # Microsoft Teams for macOS
       self_service: true
+    - slug: okta-verify/darwin # Okta Verify for macOS
+      self_service: true
+      labels_include_any:
+        - "Department: Information Technology"
     # Windows apps
     - slug: slack/windows # Slack for Windows
       display_name: "Slack"