Use one supported CIDR selector for IPMI egress exclusions

apps/oldipmi/resources/network-policy.yaml

@@ -16,10 +16,9 @@ spec:
         - 10.96.0.0/12 # Kubernetes ServiceCIDR
         - 169.254.0.0/16 # Link-local/metadata services
         - 10.12.4.170/32 # Cluster services exposed through Funkfeuer
-      toCIDRSet:
         # MetalLB's complete reserved pool: 192.168.0.10-192.168.0.49.
-        - cidr: 192.168.0.10/31
-        - cidr: 192.168.0.12/30
-        - cidr: 192.168.0.16/28
-        - cidr: 192.168.0.32/28
-        - cidr: 192.168.0.48/31
+        - 192.168.0.10/31
+        - 192.168.0.12/30
+        - 192.168.0.16/28
+        - 192.168.0.32/28
+        - 192.168.0.48/31