fix(module:button): disabled not work with anchor

[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: #5226

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

[codecov]

Codecov Report

Merging #5233 into master will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #5233      +/-   ##
==========================================
+ Coverage   91.34%   91.35%   +0.01%     
==========================================
  Files         548      548              
  Lines       13870    13876       +6     
  Branches     2093     2094       +1     
==========================================
+ Hits        12669    12677       +8     
+ Misses        708      707       -1     
+ Partials      493      492       -1     

Impacted Files	Coverage Δ
components/core/wave/nz-wave.directive.ts	95.12% <ø> (ø)
components/button/button.component.ts	100.00% <100.00%> (ø)
components/core/util/text-measure.ts	91.30% <0.00%> (+1.73%)	⬆️

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[vthinkxie]

lgtm