add metrics of service

[LiZhenCheng9527]

What type of PR is this?
/kind bug
/kind enhancement

What this PR does / why we need it:

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[kmesh-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please assign hzxuzhonghu for approval. For more information see the Kubernetes Code Review Process.

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

Needs approval from an approver in each of these files:

• OWNERS

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

[codecov]

Codecov Report

Attention: Patch coverage is 71.68142% with 32 lines in your changes missing coverage. Please review.

Project coverage is 49.37%. Comparing base (4a7807b) to head (b4b60e4).
Report is 18 commits behind head on main.

Files	Coverage Δ
pkg/controller/telemetry/utils.go	77.77% <100.00%> (+1.30%)	⬆️
pkg/auth/rbac.go	80.97% <87.50%> (+0.20%)	⬆️
pkg/controller/telemetry/metric.go	59.67% <69.90%> (+5.89%)	⬆️

... and 5 files with indirect coverage changes

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update df8b1b0...b4b60e4. Read the comment docs.

[LiZhenCheng9527]

/cc @hzxuzhonghu this pr is ready to merge
Completing validation in the 5.10 kernel

[kmesh-bot]

@LiZhenCheng9527: GitHub didn't allow me to request PR reviews from the following users: to, merge, this, pr, is, ready.

Note that only kmesh-net members and repo collaborators can review this PR, and authors cannot review their own PRs.

In response to this:

/cc @hzxuzhonghu this pr is ready to merge

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[LiZhenCheng9527]

/hold