kube-ovn-cni: fix pinger result when timeout is reached

[zhangzujian]

Pull Request

• Make sure you have followed Kube-OVN Code Style.

What type of this PR

Examples of user facing changes:

• Features
• Bug fixes
• Docs
• Tests

Which issue(s) this PR fixes

W1124 16:21:39.705812 1626079 ovs.go:34] 10.100.6.9 network not ready after 189 ping to gateway 10.100.6.1
W1124 16:21:42.705081 1626079 ovs.go:34] 10.100.6.9 network not ready after 192 ping to gateway 10.100.6.1
W1124 16:21:45.705465 1626079 ovs.go:34] 10.100.6.9 network not ready after 195 ping to gateway 10.100.6.1
W1124 16:21:48.706072 1626079 ovs.go:34] 10.100.6.9 network not ready after 198 ping to gateway 10.100.6.1
I1124 16:21:50.754492 1626079 ovs.go:45] 10.100.6.9 network ready after 200 ping, gw 10.100.6.1

WHAT

🤖[deprecated] Generated by Copilot at 7aa7fe9

Improve network readiness check by handling gateway ping failure. Add error return and warning log in pingGateway function in pkg/daemon/ovs.go.

🤖[deprecated] Generated by Copilot at 7aa7fe9

pingGateway checks
packets from the gateway - none?
logs a warning, fails

HOW

🤖[deprecated] Generated by Copilot at 7aa7fe9

• Add a check for gateway packet loss in pingGateway function (link) to improve error handling and logging of network readiness