fix(module:input-number): consider input value ends with 0 as incomplete

[Laffery]

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?

input value like /[.。]$/ is considered as not completed, resulting in 3.0 being considered as completed number and being format to 3.

Issue Number: close #9049

What is the new behavior?

1. typing 0

typing	display (now)	display (before)
3.0	3.0	3
3.10	3.10	3.1
3.00	3.00	3

2. backspace the last character

backspace	display (now)	display (before)
3.01	3.0	3
3.101	3.10	3.1
3.001	3.00	3

Does this PR introduce a breaking change?

• Yes
• No

Other information

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.95%. Comparing base (bb48232) to head (e1fc4e4).
Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #9051   +/-   ##
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  Coverage   91.95%   91.95%           
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  Files         559      559           
  Lines       19773    19773           
  Branches     3050     3050           
=======================================
  Hits        18182    18182           
  Misses       1265     1265           
  Partials      326      326           

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[HyperLife1119]

LGTM