fix: add missing label in nodes component

[ericsyh]

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?

On the Upstream create page, host label is missing.

So i add the label of host on the page, it will look like:

Related issues

No related issue.

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 #1823 (cfaee0c) into master (a45ba91) will increase coverage by 0.24%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1823      +/-   ##
==========================================
+ Coverage   71.73%   71.98%   +0.24%     
==========================================
  Files         172      125      -47     
  Lines        6100     2948    -3152     
  Branches      713      713              
==========================================
- Hits         4376     2122    -2254     
+ Misses       1480      826     -654     
+ Partials      244        0     -244     

Flag	Coverage Δ
backend-e2e-test	?
backend-e2e-test-ginkgo	?
backend-unit-test	?
frontend-e2e-test	71.98% <ø> (ø)

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

Impacted Files	Coverage Δ
web/src/components/Upstream/components/Nodes.tsx	100.00% <ø> (ø)
api/internal/handler/route/route.go
api/internal/core/storage/etcd.go
api/internal/core/store/validate_mock.go
...l/handler/route_online_debug/route_online_debug.go
api/internal/filter/recover.go
api/internal/handler/consumer/consumer.go
api/internal/filter/request_id.go
api/internal/filter/schema.go
api/internal/utils/pid.go
... and 38 more

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[juzhiyuan]

LGTM

[liuxiran]

LGTM