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

cmd/setup/setup.go

@@ -136,6 +136,7 @@ func Setup(config *Config, steps *Steps, masterKey string) {
 	steps.s21AddBlockFieldToLimits = &AddBlockFieldToLimits{dbClient: queryDBClient}
 	steps.s22ActiveInstancesIndex = &ActiveInstanceEvents{dbClient: queryDBClient}
 	steps.s23CorrectGlobalUniqueConstraints = &CorrectGlobalUniqueConstraints{dbClient: esPusherDBClient}
+	steps.s24AddActorToAuthTokens = &AddActorToAuthTokens{dbClient: queryDBClient}
 
 	err = projection.Create(ctx, projectionDBClient, eventstoreClient, config.Projections, nil, nil, nil)
 	logging.OnError(err).Fatal("unable to start projections")
@@ -172,6 +173,7 @@ func Setup(config *Config, steps *Steps, masterKey string) {
 		steps.s20AddByUserSessionIndex,
 		steps.s22ActiveInstancesIndex,
 		steps.s23CorrectGlobalUniqueConstraints,
+		steps.s24AddActorToAuthTokens,
 	} {
 		mustExecuteMigration(ctx, eventstoreClient, step, "migration failed")
 	}