fix kubernetes test

[zirain]

xref: #7816 #7815

1. add -race to KUBE_TEST_ARGS
2. fix data race
3. ignore test env stop error

[codecov]

Codecov Report

❌ Patch coverage is 44.44444% with 20 lines in your changes missing coverage. Please review.
✅ Project coverage is 72.59%. Comparing base (a26fba5) to head (00001f1).

Files with missing lines	Patch %	Lines
internal/provider/kubernetes/controller.go	37.50%	12 Missing and 8 partials ⚠️

❌ Your patch check has failed because the patch coverage (44.44%) is below the target coverage (60.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7817      +/-   ##
==========================================
- Coverage   72.63%   72.59%   -0.04%     
==========================================
  Files         235      235              
  Lines       34873    34885      +12     
==========================================
- Hits        25330    25325       -5     
- Misses       7739     7752      +13     
- Partials     1804     1808       +4     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.