feat(oidc): token exchange impersonation (#7516)

* add token exchange feature flag

* allow setting reason and actor to access tokens

* impersonation

* set token types and scopes in response

* upgrade oidc to working draft state

* fix tests

* audience and scope validation

* id toke and jwt as input

* return id tokens

* add grant type  token exchange to app config

* add integration tests

* check and deny actors in api calls

* fix instance setting tests by triggering projection on write and cleanup

* insert sleep statements again

* solve linting issues

* add translations

* pin oidc v3.15.0

* resolve comments, add event translation

* fix refreshtoken test

* use ValidateAuthReqScopes from oidc

* apparently the linter can't make up its mind

* persist actor thru refresh tokens and check in tests

* remove unneeded triggers

internal/command/instance_features.go

@@ -16,13 +16,15 @@ type InstanceFeatures struct {
 	TriggerIntrospectionProjections *bool
 	LegacyIntrospection             *bool
 	UserSchema                      *bool
+	TokenExchange                   *bool
 }
 
 func (m *InstanceFeatures) isEmpty() bool {
 	return m.LoginDefaultOrg == nil &&
 		m.TriggerIntrospectionProjections == nil &&
 		m.LegacyIntrospection == nil &&
-		m.UserSchema == nil
+		m.UserSchema == nil &&
+		m.TokenExchange == nil
 }
 
 func (c *Commands) SetInstanceFeatures(ctx context.Context, f *InstanceFeatures) (*domain.ObjectDetails, error) {