Use xDS to pupulate route data in Policy Engine

[renuka-fernando]

Description

Build: https://github.com/wso2/api-platform/actions/runs/22014332518/job/63613609691

Logs

[4/6] Processing Local Policies
  → Processing 2 local policies...
  uppercase-body: using dir,   count-letters: using dir, ✓ Processed 2 local policies

  ✓ Processed 2 local policies


[5/6] Preparing workspace and copying policies
Error: failed to setup workspace: failed to remove existing temp gateway image build directory: unlinkat /home/runner/.wso2ap/.tmp/gateway-image-build/output/gateway-runtime/policy-engine: permission denied
Error: Process completed with exit code 1.