feat(module:input-number): support inputmode

[vthinkxie]

close #5341

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?

[ ] 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
[ ] No

Other information

[zorro-bot]

This preview will be available after the AzureCI is passed.

[codecov]

Codecov Report

Merging #5423 into master will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #5423   +/-   ##
=======================================
  Coverage   91.24%   91.24%           
=======================================
  Files         551      551           
  Lines       13974    13975    +1     
  Branches     2116     2116           
=======================================
+ Hits        12750    12751    +1     
  Misses        729      729           
  Partials      495      495           

Impacted Files	Coverage Δ
components/input-number/input-number.component.ts	97.48% <100.00%> (+0.01%)	⬆️

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