Hide dynamic field for describing collection (#24312)

[xiaocai2333]

/kind improvement

[mergify]

@xiaocai2333 ut workflow job failed, comment rerun ut can trigger the job again.

[mergify]

@xiaocai2333 ut workflow job failed, comment rerun ut can trigger the job again.

[codecov]

Codecov Report

Merging #24327 (1a48b27) into 2.2.0 (3ddf21b) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##            2.2.0   #24327      +/-   ##
==========================================
+ Coverage   80.80%   80.82%   +0.02%     
==========================================
  Files         759      759              
  Lines      106109   106105       -4     
==========================================
+ Hits        85737    85761      +24     
+ Misses      17051    17026      -25     
+ Partials     3321     3318       -3     

Impacted Files	Coverage Δ
internal/proxy/task.go	86.77% <100.00%> (+0.01%)	⬆️
internal/proxy/task_insert.go	71.01% <100.00%> (+0.94%)	⬆️
internal/proxy/util.go	90.32% <100.00%> (ø)

... and 19 files with indirect coverage changes

[czs007]

/approve
/lgtm

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: czs007, xiaocai2333

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[xiaocai2333]

#24232