feat: rewrite e2e test(test-e2e-route-with-plugin-CORS) using ginkgo

[bisakhmondal]

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Why submit this pull request?

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

Related issues
#1500

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?
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[codecov-io]

Codecov Report

Merging #1676 (a27cafc) into master (88f3232) will increase coverage by 1.55%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1676      +/-   ##
==========================================
+ Coverage   72.41%   73.96%   +1.55%     
==========================================
  Files         133       86      -47     
  Lines        5728     2612    -3116     
  Branches      666      666              
==========================================
- Hits         4148     1932    -2216     
+ Misses       1337      680     -657     
+ Partials      243        0     -243     

Flag	Coverage Δ
backend-e2e-test	?
backend-e2e-test-ginkgo	?
backend-unit-test	?
frontend-e2e-test	73.96% <ø> (ø)

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

Impacted Files	Coverage Δ
api/internal/handler/global_rule/global_rule.go
api/internal/core/storage/etcd.go
...l/handler/route_online_debug/route_online_debug.go
api/internal/handler/schema/plugin.go
api/internal/core/entity/format.go
api/internal/core/store/storehub.go
.../internal/handler/authentication/authentication.go
api/internal/handler/ssl/ssl.go
api/internal/filter/authentication.go
api/internal/handler/label/label.go
... and 37 more

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[imjoey]

/lgtm

Thanks @bisakhmondal .