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

[codecov-io]

Codecov Report

Merging #1582 (df804ce) into master (9cb4b43) will decrease coverage by 5.29%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1582      +/-   ##
==========================================
- Coverage   71.64%   66.34%   -5.30%     
==========================================
  Files         132       46      -86     
  Lines        5339     3019    -2320     
  Branches      584        0     -584     
==========================================
- Hits         3825     2003    -1822     
+ Misses       1269      768     -501     
- Partials      245      248       +3     

Flag	Coverage Δ
backend-e2e-test	?
backend-e2e-test-ginkgo	46.27% <ø> (-0.14%)	⬇️
backend-unit-test	51.54% <ø> (ø)
frontend-e2e-test	?

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

Impacted Files	Coverage Δ
api/internal/handler/data_loader/route_import.go	35.08% <0.00%> (-29.84%)	⬇️
api/internal/core/entity/entity.go	75.00% <0.00%> (-25.00%)	⬇️
api/internal/handler/global_rule/global_rule.go	66.12% <0.00%> (-17.75%)	⬇️
api/internal/utils/utils.go	54.11% <0.00%> (-11.77%)	⬇️
api/internal/route.go	77.14% <0.00%> (-8.58%)	⬇️
api/internal/core/store/storehub.go	67.28% <0.00%> (-3.74%)	⬇️
api/internal/core/storage/etcd.go	43.63% <0.00%> (-3.64%)	⬇️
api/internal/filter/schema.go	52.10% <0.00%> (-3.37%)	⬇️
api/internal/core/store/validate.go	67.03% <0.00%> (-2.24%)	⬇️
api/internal/handler/label/label.go	80.18% <0.00%> (-1.89%)	⬇️
... and 86 more

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