test: Allow Trivy scan to contact pkg-containers.githubusercontent.com.

Author: skyzyx

.github/workflows/trivy-vuln.yml

@@ -40,6 +40,7 @@ jobs:
             ghcr.io:443
             github.com:443
             objects.githubusercontent.com:443
+            pkg-containers.githubusercontent.com:443
 
       - name: Checkout code
         uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4.1.2