feat: rewrite e2e test(rewrite-e2e-test-route-with-prometheus-test) with ginkgo

[Jaycean]

Please answer these questions before submitting a pull request

• Why submit this pull request?

• Bugfix

• New feature provided

• Improve performance

• Backport patches

• Related issues
  Feat: Rewrite all E2E tests using the Ginkgo #1500

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New feature or improvement

• Rewrite e2e test(rewrite-e2e-test-route-with-prometheus-test) with ginkgo

[codecov-io]

Codecov Report

Merging #1613 (40a68c8) into master (01c9528) will increase coverage by 1.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1613      +/-   ##
==========================================
+ Coverage   71.46%   72.49%   +1.03%     
==========================================
  Files         132       86      -46     
  Lines        5375     2356    -3019     
  Branches      592      592              
==========================================
- Hits         3841     1708    -2133     
+ Misses       1290      648     -642     
+ Partials      244        0     -244     

Flag	Coverage Δ
backend-e2e-test	?
backend-e2e-test-ginkgo	?
backend-unit-test	?
frontend-e2e-test	72.49% <ø> (-0.09%)	⬇️

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

Impacted Files	Coverage Δ
web/src/helpers.tsx	77.04% <0.00%> (-3.28%)	⬇️
api/internal/route.go
api/internal/log/zap.go
api/internal/handler/ssl/ssl.go
api/internal/handler/data_loader/route_export.go
api/internal/filter/authentication.go
api/internal/core/storage/etcd.go
api/internal/handler/handler.go
api/internal/filter/schema.go
api/internal/handler/route/route.go
... and 37 more

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[imjoey]

/lgtm

Thanks @Jaycean .