doc: [skip-e2e] add comments for task queue

[ArenaSu]

Add comments for task queue in internal/proxy/task_scheduler.go.

[sre-ci-robot]

Welcome @ArenaSu! It looks like this is your first PR to milvus-io/milvus 🎉

[ArenaSu]

/assign @czs007

[czs007]

/approve
/lgtm

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ArenaSu, czs007

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:

• internal/proxy/OWNERS [czs007]

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

[mergify]

@ArenaSu ut workflow job failed, comment rerun ut can trigger the job again.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.18%. Comparing base (58ee613) to head (5b6bd0a).
Report is 11 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #33388      +/-   ##
==========================================
- Coverage   82.18%   82.18%   -0.01%     
==========================================
  Files        1012     1012              
  Lines      128957   128957              
==========================================
- Hits       105985   105982       -3     
- Misses      19000    19002       +2     
- Partials     3972     3973       +1     

Files	Coverage Δ
internal/proxy/task_scheduler.go	95.34% <ø> (ø)

... and 36 files with indirect coverage changes

[ArenaSu]

rerun ut

[github-actions]

Hello ArenaSu, you are not in the organization, so you do not have the permission to rerun the workflow, please contact @milvus-io/milvus-maintainers for help.

[ArenaSu]

@czs007 I can not find any useful messages for Code Checker failure.I think comments do not affect it.

[ArenaSu]

@milvus-io/milvus-maintainers Hi, can you give me permission to rerun workflow?