feat: saml application configuration for login version (#9351)

# Which Problems Are Solved

OIDC applications can configure the used login version, which is
currently not possible for SAML applications.

# How the Problems Are Solved

Add the same functionality dependent on the feature-flag for SAML
applications.

# Additional Changes

None

# Additional Context

Closes #9267
Follow up issue for frontend changes #9354

---------

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

cmd/setup/48.go

@@ -0,0 +1,27 @@
+package setup
+
+import (
+	"context"
+	_ "embed"
+
+	"github.com/zitadel/zitadel/internal/database"
+	"github.com/zitadel/zitadel/internal/eventstore"
+)
+
+var (
+	//go:embed 48.sql
+	addSAMLAppLoginVersion string
+)
+
+type Apps7SAMLConfigsLoginVersion struct {
+	dbClient *database.DB
+}
+
+func (mig *Apps7SAMLConfigsLoginVersion) Execute(ctx context.Context, _ eventstore.Event) error {
+	_, err := mig.dbClient.ExecContext(ctx, addSAMLAppLoginVersion)
+	return err
+}
+
+func (mig *Apps7SAMLConfigsLoginVersion) String() string {
+	return "48_apps7_saml_configs_login_version"
+}