feat: add saml request to link to sessions (#9001)

# Which Problems Are Solved

It is currently not possible to use SAML with the Session API.

# How the Problems Are Solved

Add SAML service, to get and resolve SAML requests.
Add SAML session and SAML request aggregate, which can be linked to the
Session to get back a SAMLResponse from the API directly.

# Additional Changes

Update of dependency zitadel/saml to provide all functionality for
handling of SAML requests and responses.

# Additional Context

Closes #6053

---------

Co-authored-by: Livio Spring <livio.a@gmail.com>

internal/static/i18n/es.yaml

@@ -549,6 +549,12 @@ Errors:
       Invalid: El token no es válido
       Expired: El token ha caducado
     InvalidClient: El token no ha sido emitido para este cliente
+  SAMLRequest:
+    AlreadyExists: SAMLRequest ya existe
+    NotExisting: SAMLRequest no existe
+    WrongLoginClient: SAMLRequest creado por otro cliente de inicio de sesión
+  SAMLSession:
+    InvalidClient: SAMLResponse no ha sido emitido para este cliente
   Feature:
     NotExisting: La característica no existe
     TypeNotSupported: El tipo de característica no es compatible
@@ -623,6 +629,8 @@ AggregateTypes:
   system: Sistema
   session: Sesión
   web_key: Clave web
+  saml_request: Solicitud SAML
+  saml_session: Sesión SAML
 
 EventTypes:
   execution: