OCPBUGS-82501: Fix DualStack EgressFirewall CI fail on AWS

- Fix egress firewall test flakiness for DualStack on AWS
- Add diagnostic logging for DNS resolution (nslookup probes)
- Enhance curl commands with verbose output for debugging
- Improve error assertions and step descriptions in egress_firewall.go
- Revert debug changes per review feedback
- Update bindata to reflect test changes

Author: shreyasbe

test/extended/testdata/bindata.go

@@ -24,6 +24,9 @@ spec:
       nodeSelector:
         matchLabels:
           node-role.kubernetes.io/control-plane: ''
-  - type: Deny
+  - type: Deny        # IPv4 default deny-all
     to:
       cidrSelector: 0.0.0.0/0
+  - type: Deny        # IPv6 default deny-all
+    to:
+      cidrSelector: ::/0

test/extended/testdata/egress-firewall/ovnk-egressfirewall-test.yaml

@@ -21,6 +21,9 @@ spec:
       nodeSelector:
         matchLabels:
           node-role.kubernetes.io/control-plane: ''
-  - type: Deny
+  - type: Deny        # IPv4 default deny-all
     to:
       cidrSelector: 0.0.0.0/0
+  - type: Deny        # IPv6 default deny-all
+    to:
+      cidrSelector: ::/0