koordlet: fix misleading query helper

[saintube]

Ⅰ. Describe what this PR does

• koordlet: fix the misleading query helper where someone uses time.Second while others use time.Duration.

Ⅱ. Does this pull request fix one issue?

Ⅲ. Describe how to verify it

Ⅳ. Special notes for reviews

V. Checklist

• I have written necessary docs and comments
• I have added necessary unit tests and integration tests
• All checks passed in make test

[jasonliu747]

/lgtm

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jasonliu747

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:

• pkg/koordlet/OWNERS [jasonliu747]

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: 2 lines in your changes are missing coverage. Please review.

Comparison is base (93f2bc2) 67.52% compared to head (577ca16) 67.53%.

Files	Patch %	Lines
pkg/koordlet/qosmanager/helpers/metrics_query.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1893      +/-   ##
==========================================
+ Coverage   67.52%   67.53%   +0.01%     
==========================================
  Files         413      413              
  Lines       46072    46072              
==========================================
+ Hits        31111    31117       +6     
+ Misses      12705    12702       -3     
+ Partials     2256     2253       -3     

Flag	Coverage Δ
unittests	67.53% <84.61%> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.