feat: add issuer url to well-known

[skynet2]

Signed-off-by: Stas D [email protected]

[codecov]

Codecov Report

Patch coverage: 87.93% and project coverage change: -0.01% ⚠️

Comparison is base (79c5330) 87.45% compared to head (564094e) 87.44%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1376      +/-   ##
==========================================
- Coverage   87.45%   87.44%   -0.01%     
==========================================
  Files         153      154       +1     
  Lines        9165     9274     +109     
==========================================
+ Hits         8015     8110      +95     
- Misses        760      768       +8     
- Partials      390      396       +6     

Files Changed	Coverage Δ
cmd/vc-rest/startcmd/oauth_provider.go	97.61% <ø> (ø)
pkg/service/clientmanager/api.go	69.23% <ø> (ø)
pkg/restapi/v1/oidc4ci/controller.go	90.05% <66.66%> (-0.60%)	⬇️
...g/service/clientidscheme/clientidscheme_service.go	87.34% <87.34%> (ø)
cmd/vc-rest/startcmd/start.go	80.70% <100.00%> (+0.20%)	⬆️
pkg/observability/metrics/prometheus/provider.go	92.17% <100.00%> (+0.04%)	⬆️
pkg/restapi/v1/issuer/controller.go	88.94% <100.00%> (+0.02%)	⬆️
pkg/service/clientmanager/client_manager.go	91.33% <100.00%> (+0.55%)	⬆️

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