chore: use http constants instead of string

[Fish-pro]

Signed-off-by: Fish-pro zechun.chen@daocloud.io

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• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this does not need to be in the release notes.
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[codecov]

Codecov Report

Base: 47.63% // Head: 47.63% // No change to project coverage 👍

Coverage data is based on head (68e5719) compared to base (7bff6c1).
Patch coverage: 60.00% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #12334   +/-   ##
=======================================
  Coverage   47.63%   47.63%           
=======================================
  Files         246      246           
  Lines       41801    41801           
=======================================
  Hits        19911    19911           
  Misses      19897    19897           
  Partials     1993     1993           

Impacted Files	Coverage Δ
applicationset/services/scm_provider/gitea.go	69.15% <0.00%> (ø)
applicationset/webhook/webhook.go	65.71% <0.00%> (ø)
util/helm/client.go	47.51% <50.00%> (ø)
...cationset/services/scm_provider/bitbucket_cloud.go	73.64% <100.00%> (ø)
applicationset/services/scm_provider/github.go	81.25% <100.00%> (ø)
util/dex/dex.go	57.50% <100.00%> (ø)
util/webhook/webhook.go	68.28% <100.00%> (ø)
util/settings/settings.go	49.36% <0.00%> (ø)

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[blakepettersson]

LGTM 👍

[Fish-pro]

@terrytangyuan
It has already been approved, why hasn't it been merged yet? Request for guidance

[terrytangyuan]

You'll need the actual approvals from approvers in OWNERS file.

[Fish-pro]

You'll need the actual approvals from approvers in OWNERS file.

@terrytangyuan Thanks, I got it

[Fish-pro]

/cc @crenshaw-dev

[ciiay]

LGTM

[crenshaw-dev]

Thanks, @Fish-pro!