fix(module:upload): do not trigger change detection for nz-upload-btn

[arturovt]

PR Checklist

• The commit message follows our guidelines: https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[x] Bugfix

What is the current behavior?

Currently, it runs change detection each time the nz-upload-btn is clicked, tho it opens a native OS file picker. This is considered as a "dead" change detection (ApplicationRef.tick() is run, but there's nothing to update). This may cause a frame drop when opening a native file picker (because Angular has to run the whole change detection before opening it).

What is the new behavior?

There's no dead change detection when the nz-upload-btn is clicked.

Does this PR introduce a breaking change?

[ ] Yes
[x] No

[zorro-bot]

This preview will be available after the AzureCI is passed.

[codecov]

Codecov Report

Merging #7032 (15edc9e) into master (b18c050) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #7032      +/-   ##
==========================================
- Coverage   89.52%   89.51%   -0.02%     
==========================================
  Files         489      489              
  Lines       15768    15774       +6     
  Branches     2573     2573              
==========================================
+ Hits        14117    14120       +3     
- Misses       1011     1012       +1     
- Partials      640      642       +2     

Impacted Files	Coverage Δ
components/upload/upload-btn.component.ts	96.89% <100.00%> (+0.09%)	⬆️
components/core/util/text-measure.ts	89.47% <0.00%> (-1.76%)	⬇️
components/time-picker/time-holder.ts	95.78% <0.00%> (-1.06%)	⬇️

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[cipchk]

LGTM