[management] Add Microsoft AD FS support for embedded Dex identity providers (#6008)

shared/management/http/api/openapi.yml

@@ -2917,6 +2917,7 @@ components:
         - okta
         - pocketid
         - microsoft
+        - adfs
       example: oidc
     IdentityProvider:
       type: object

shared/management/http/api/types.gen.go

@@ -518,6 +518,7 @@ const (
 	IdentityProviderTypeOkta      IdentityProviderType = "okta"
 	IdentityProviderTypePocketid  IdentityProviderType = "pocketid"
 	IdentityProviderTypeZitadel   IdentityProviderType = "zitadel"
+	IdentityProviderTypeAdfs      IdentityProviderType = "adfs"
 )
 
 // Valid indicates whether the value is a known member of the IdentityProviderType enum.
@@ -537,6 +538,8 @@ func (e IdentityProviderType) Valid() bool {
 		return true
 	case IdentityProviderTypeZitadel:
 		return true
+	case IdentityProviderTypeAdfs:
+		return true
 	default:
 		return false
 	}