refactor: Replace the labelsData api with the nodelabels api

Created by: bunnymiao

Signed-off-by: Bunny qimiao@yunify.com

What type of PR is this?

kind api-change

What this PR does / why we need it:

Using the new Jenkins agent label list API

Which issue(s) this PR fixes:

Fixes #739

Special notes for reviewers:

Does this PR introduced a user-facing change?

NONE

Additional documentation, usage docs, etc.: