Fix some webhooks bugs

[lunny]

No description provided.

[lunny]

block by go-gitea/go-sdk#107

[appleboy]

@lunny update vendor. Done

[lunny]

@appleboy Thanks!

[codecov-io]

Codecov Report

Merging #3981 into master will decrease coverage by <.01%.
The diff coverage is 16.6%.

@@            Coverage Diff             @@
##           master    #3981      +/-   ##
==========================================
- Coverage   20.06%   20.05%   -0.01%     
==========================================
  Files         153      153              
  Lines       30122    30341     +219     
==========================================
+ Hits         6044     6086      +42     
- Misses      23168    23342     +174     
- Partials      910      913       +3

Impacted Files	Coverage Δ
models/webhook_slack.go	0% <0%> (ø)	⬆️
models/webhook_dingtalk.go	0% <0%> (ø)	⬆️
models/issue_comment.go	27.22% <0%> (-0.32%)	⬇️
models/pull.go	17.17% <0%> (-0.1%)	⬇️
routers/repo/release.go	9.69% <0%> (ø)	⬆️
routers/api/v1/repo/release.go	0% <0%> (ø)	⬆️
models/webhook_discord.go	1.55% <0%> (-0.11%)	⬇️
models/repo.go	17.87% <0%> (-0.03%)	⬇️
models/release.go	0% <0%> (ø)	⬆️
models/issue_user.go	72.72% <100%> (+0.72%)	⬆️
... and 4 more

---

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[lunny]

fix #3579, #3492

[lunny]

fix #895

[lafriks]

@lunny plaese fix fmt error

[lunny]

@lafriks done.

[lunny]

make L-G-T-M work