fix: i18n for TCP in Upstream

[guoqqqi]

Please answer these questions before submitting a pull request, or your PR will get closed.

Why submit this pull request?

• Bugfix
• New feature provided
• Improve performance
• Backport patches

What changes will this PR take into?

Fixed i18n in the TCP failure field of the upstream component.

Related issues
resolve #1959

Checklist:

• Did you explain what problem does this PR solve? Or what new features have been added?
• Have you added corresponding test cases?
• Have you modified the corresponding document?
• Is this PR backward compatible? If it is not backward compatible, please discuss on the mailing list first

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[codecov-commenter]

Codecov Report

Merging #1963 (c23cb4f) into master (3cfc327) will decrease coverage by 2.78%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1963      +/-   ##
==========================================
- Coverage   66.79%   64.01%   -2.79%     
==========================================
  Files         182      122      -60     
  Lines        6575     3154    -3421     
  Branches      753      753              
==========================================
- Hits         4392     2019    -2373     
+ Misses       1907     1135     -772     
+ Partials      276        0     -276     

Flag	Coverage Δ
backend-e2e-test	?
backend-e2e-test-ginkgo	?
backend-unit-test	?
frontend-e2e-test	64.01% <ø> (+0.06%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
api/internal/log/log.go
api/internal/handler/consumer/consumer.go
api/internal/handler/ssl/ssl.go
api/internal/handler/healthz/healthz.go
api/cmd/root.go
api/internal/utils/runtime/runtime.go
api/internal/core/migrate/dataset.go
api/internal/handler/label/label.go
api/cmd/service.go
.../internal/handler/authentication/authentication.go
... and 51 more

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[guoqqqi]

@liuxiran Please help me look at it when you have time