fix: add wget for ng-monitoring builder

[jayl1e]

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[ti-chi-bot]

I have already done a preliminary review for you, and I hope to help you do a better job.
Summary:
The pull request adds wget to the ng-monitoring builder Dockerfile.

Potential problems:
There are no potential problems with this pull request.

Fixing suggestions:
No fixing suggestions are required as the pull request is correct and safe to merge.

[ti-chi-bot]

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