ci: use Headlamp service IP for E2E tests

Use the Headlamp ClusterIP (10.43.61.138) directly instead of the ingress
hostname to avoid DNS resolution and ingress routing issues on local runners.

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

.github/workflows/e2e.yaml

@@ -31,7 +31,7 @@ jobs:
       - name: Run E2E tests
         run: npm run e2e
         env:
-          HEADLAMP_URL: ${{ secrets.HEADLAMP_URL || 'https://headlamp.animaniacs.farh.net' }}
+          HEADLAMP_URL: ${{ secrets.HEADLAMP_URL || 'http://10.43.61.138' }}
           HEADLAMP_TOKEN: ${{ secrets.HEADLAMP_TOKEN }}
           AUTHENTIK_USERNAME: ${{ secrets.AUTHENTIK_USERNAME }}
           AUTHENTIK_PASSWORD: ${{ secrets.AUTHENTIK_PASSWORD }}