feat: add SAML as identity provider (#6454)

* feat: first implementation for saml sp

* fix: add command side instance and org for saml provider

* fix: add query side instance and org for saml provider

* fix: request handling in event and retrieval of finished intent

* fix: add review changes and integration tests

* fix: add integration tests for saml idp

* fix: correct unit tests with review changes

* fix: add saml session unit test

* fix: add saml session unit test

* fix: add saml session unit test

* fix: changes from review

* fix: changes from review

* fix: proto build error

* fix: proto build error

* fix: proto build error

* fix: proto require metadata oneof

* fix: login with saml provider

* fix: integration test for saml assertion

* lint client.go

* fix json tag

* fix: linting

* fix import

* fix: linting

* fix saml idp query

* fix: linting

* lint: try all issues

* revert linting config

* fix: add regenerate endpoints

* fix: translations

* fix mk.yaml

* ignore acs path for user agent cookie

* fix: add AuthFromProvider test for saml

* fix: integration test for saml retrieve information

---------

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

internal/command/idp.go

@@ -110,6 +110,15 @@ type LDAPProvider struct {
 	IDPOptions        idp.Options
 }
 
+type SAMLProvider struct {
+	Name              string
+	Metadata          []byte
+	MetadataURL       string
+	Binding           string
+	WithSignedRequest bool
+	IDPOptions        idp.Options
+}
+
 type AppleProvider struct {
 	Name       string
 	ClientID   string