chore(deps): update actions/upload-artifact action to v4.6.0

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -54,7 +54,7 @@ jobs:
         run: kubectl logs -n cloudflare-gateway deployment/cloudflare-controller-manager
 
       - name: Upload conformance report
-        uses: actions/upload-artifact@v4.5.0
+        uses: actions/upload-artifact@v4.6.0
         with:
           name: conformance-report
           path: '*-report.yaml'