fix: gulp file read endless waiting

[bmwz110]

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?

If build-config.js does not exist, the gulp command will cause endless waiting

What is the new behavior?

When the search reaches the end of the file system and still does not find the target file, then throw an error

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

[zorro-bot]

This preview will be available after the AzureCI is passed.

[codecov]

Codecov Report

Merging #7826 (2712d6d) into master (3602abc) will increase coverage by 0.01%.
The diff coverage is n/a.

❗ Current head 2712d6d differs from pull request most recent head 955fce3. Consider uploading reports for the commit 955fce3 to get more accurate results

@@            Coverage Diff             @@
##           master    #7826      +/-   ##
==========================================
+ Coverage   92.08%   92.09%   +0.01%     
==========================================
  Files         502      502              
  Lines       16819    16819              
  Branches     2577     2662      +85     
==========================================
+ Hits        15487    15489       +2     
+ Misses       1061     1060       -1     
+ Partials      271      270       -1     

Impacted Files	Coverage Δ
components/tabs/tab-nav-bar.component.ts	87.94% <0.00%> (+0.70%)	⬆️

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

[bmwz110]

better: replace console's "build-config.js" to ${BUILD_CONFIG_FILENAME}

[wzhudev]

Could you please a reproduction? What's the problem this PR supposed to solve?

[bmwz110]

build-config.js

Yes:
remove build-config.js (or rename it) from folder and run gulp, terminal did not output any prompts, I mistakenly thought it was in progress, until it took longer.

This is just a corner problem I encountered when learning this framework, I forget set build-config.js.
This PR can help developers locate problems faster.