fix: failed to create routing rules in ipv6 and ipv4 dual-stack environment

Created by: zhaohuiweixiao

Signed-off-by: zhaohuihui zhaohuihui_yewu@cmss.chinamobile.com

What type of PR is this?

/kind bug

What this PR does / why we need it:

In the ipv6 and ipv4 dual-stack environment, the creation of routing rules fails because the K8S ingress host property does not support colons, whereas ipv6 has colons.

Special notes for reviewers:

/assign harrisonliu5

Does this PR introduced a user-facing change?

fix: filter the ipv6 address when automatically generate routing rules