ci/test: bump various versions

[zhangzujian]

• 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:

Fixes #(issue-number)

WHAT

🤖 Generated by Copilot at 0318217

Updated some dependencies and tools versions in the Makefile and the GitHub workflow files. Added some comments and constants to suppress gosec warnings and improve code quality in the pkg/ovs and pkg/util packages.

🤖 Generated by Copilot at 0318217

Sing, O Muse, of the valiant pull request
That updated the tools of the code warriors
Who battle with bugs and vulnerabilities
In the realm of ovs and helm and gosec.

HOW

🤖 Generated by Copilot at 0318217

• Update gosec, helm, and cilium versions in workflow files and Makefile (link, link, link, link)
• Add // #nosec comments to suppress gosec warnings for using unsafe package in pkg/ovs files (link, link, link, link, link)
• Add // #nosec comment and const keyword to vpcExternalNet variable in pkg/util/net.go file (link)
• Update kwok version in Makefile (link)