[release-1.24] fix: the pip without tags should be user-assigned

[nilo19]

What type of PR is this?

/kind bug

What this PR does / why we need it:

1. PIPs without tags should be treated as user-assigned resources. We should not tag user-assigned pip without tags.
2. When the svc changes its IP from one to another, the cached pip can be outdated. Need to refresh the cache when necessary.
3. We should not tag user-assigned pip for DNS labels.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?

fix: the pip without tags should be user-assigned
fix: refresh the pip cache when necessary
fix: do not tag user-assigned pip with `kubernetes-dns-label-service: <svcName>`

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: nilo19

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [nilo19]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[coveralls]

Coverage: 80.3% (+0.03%) from 80.27% when pulling fbf4539 on nilo19:fix/cherry-pick-3877-1.24 into 275d68c on kubernetes-sigs:release-1.24.

[lzhecheng]

/lgtm