[Vendor] Update xanzy/go-gitlab v0.31.0 => v0.37.0

[6543]

as title

and adapt breaking changes (2d05d08)

[codecov-commenter]

Codecov Report

Merging #12701 into master will decrease coverage by 0.00%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master   #12701      +/-   ##
==========================================
- Coverage   43.40%   43.39%   -0.01%     
==========================================
  Files         648      648              
  Lines       71581    71581              
==========================================
- Hits        31072    31066       -6     
  Misses      35482    35482              
- Partials     5027     5033       +6     

Impacted Files	Coverage Δ
modules/migrations/gitlab.go	1.04% <0.00%> (ø)
modules/notification/mail/mail.go	34.48% <0.00%> (-3.45%)	⬇️
modules/notification/ui/ui.go	80.55% <0.00%> (-2.78%)	⬇️
services/pull/check.go	47.69% <0.00%> (-2.31%)	⬇️
modules/log/event.go	57.54% <0.00%> (-1.89%)	⬇️
models/notification.go	66.13% <0.00%> (-0.92%)	⬇️
models/error.go	34.81% <0.00%> (-0.86%)	⬇️
routers/repo/view.go	37.98% <0.00%> (+0.64%)	⬆️
models/unit.go	49.31% <0.00%> (+2.73%)	⬆️
modules/queue/workerpool.go	62.04% <0.00%> (+3.26%)	⬆️
... and 1 more

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[6543]

@techknowlogick yes this was it ... go1.13 was needed

[lunny]

@6543 Please resolve the conflicts. I think this could be moved to v1.13 if it's ready to merge in time.

[6543]

@lunny done

[techknowlogick]

🚀