fix(module:button): disable wave animation when the type is link

[hsuanxyz]

PR Checklist

Please check if your PR fulfills the following requirements:

• 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
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Application (the showcase website) / infrastructure changes
[ ] Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

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[codecov]

Codecov Report

Merging #3545 into master will increase coverage by 0.04%.
The diff coverage is 93.75%.

@@            Coverage Diff             @@
##           master    #3545      +/-   ##
==========================================
+ Coverage   95.67%   95.72%   +0.04%     
==========================================
  Files         690      690              
  Lines       13692    13701       +9     
  Branches     1824     1826       +2     
==========================================
+ Hits        13100    13115      +15     
+ Misses        201      198       -3     
+ Partials      391      388       -3

Impacted Files	Coverage Δ
components/core/wave/nz-wave-renderer.ts	88.23% <100%> (+0.35%)	⬆️
components/button/nz-button.component.ts	94.36% <100%> (+0.24%)	⬆️
components/core/wave/nz-wave.directive.ts	97.72% <88.88%> (+12.72%)	⬆️
components/time-picker/time-holder.ts	97.26% <0%> (+0.68%)	⬆️

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