fix(cert-manager): Fix default deny policy

Since it's the only egress policy in the namespace, it breaks
cert-manager in general. This patch removes the egress coverage of the
policy and by that unblocks the namespace.

infrastructure/cert-manager/networkpolicy.yaml

@@ -7,7 +7,6 @@ metadata:
 spec:
   podSelector: {}
   policyTypes:
-  - Egress
   - Ingress
 ---
 apiVersion: networking.k8s.io/v1