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/static/i18n/en.yaml

@@ -556,6 +556,17 @@ Errors:
     NotActive: User Schema not active
     NotInactive: User Schema not inactive
     NotExists: User Schema does not exist
+  TokenExchange:
+    FeatureDisabled: Token Exchange feature is disabled for your instance. https://zitadel.com/docs/apis/resources/feature_service_v2/feature-service-set-instance-features
+    Token:
+      Missing: Token is missing
+      Invalid: Token is invalid
+      TypeMissing: Token type is missing
+      TypeNotAllowed: Token type is not allowed
+      TypeNotSupported: Token type is not supported
+      NotForAPI: Impersonated tokens not allowed for API
+    Impersonation:
+      PolicyDisabled: Impersonation is disabled in the instance security policy
 
 AggregateTypes:
   action: Action
@@ -592,6 +603,7 @@ EventTypes:
     token:
       added: Access Token created
       removed: Access Token removed
+    impersonated: User impersonated
     username:
       reserved: Username reserved
       released: Username released