fix tag filter

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 17.41%. Comparing base (e3045b4) to head (e349f1e). Report is 2 commits behind head on release-1.9.

Files with missing lines	Patch %	Lines
pkg/factory/aliyun/aliyun.go	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## release-1.9 #722 +/- ## ================================================ - Coverage 27.78% 17.41% -10.37% ================================================ Files 71 126 +55 Lines 7930 16611 +8681 ================================================ + Hits 2203 2893 +690 - Misses 5423 13375 +7952 - Partials 304 343 +39 ``` | [Flag](https://app.codecov.io/gh/AliyunContainerService/terway/pull/722/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=AliyunContainerService) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/AliyunContainerService/terway/pull/722/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=AliyunContainerService) | `17.41% <50.00%> (-10.37%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=AliyunContainerService#carryforward-flags-in-the-pull-request-comment) to find out more.

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