feat(actions): local users (#5089)

Actions are extended to to local users. It's possible to run custom code during registration and authentication of local users.

internal/api/grpc/action/action.go

@@ -17,6 +17,8 @@ func FlowTypeToDomain(flowType string) domain.FlowType {
 		return domain.FlowTypeExternalAuthentication
 	case domain.FlowTypeCustomiseToken.ID():
 		return domain.FlowTypeCustomiseToken
+	case domain.FlowTypeInternalAuthentication.ID():
+		return domain.FlowTypeInternalAuthentication
 	default:
 		return domain.FlowTypeUnspecified
 	}