fix(scim): add type attribute to ScimEmail (#9690)

# Which Problems Are Solved

- SCIM PATCH operations for users from Entra ID for the `emails`
attribute fails due to missing `type` subattribute

# How the Problems Are Solved

- Adds the `type` attribute to the `ScimUser` struct and sets the
default value to `"work"` in the `mapWriteModelToScimUser()` method.

# Additional Changes

# Additional Context

The SCIM handlers for POST and PUT ignore multiple emails and only uses
the primary email for a given user, or falls back to the first email if
none are marked as primary. PATCH operations however, will attempt to
resolve the provided filter in `operations[].path`.

Some services, such as Entra ID, only support patching emails by
filtering for `emails[type eq "(work|home|other)"].value`, which fails
with Zitadel as the ScimUser struct (and thus the generated schema)
doesn't include the `type` field.

This commit adds the `type` field to work around this issue, while still
preserving compatibility with filters such as `emails[primary eq
true].value`.

-
https://discord.com/channels/927474939156643850/927866013545025566/1356556668527448191

---------

Co-authored-by: Christer Edvartsen <christer.edvartsen@nav.no>
Co-authored-by: Thomas Siegfried Krampl <thomas.siegfried.krampl@nav.no>

internal/api/scim/integration_test/users_update_test.go

@@ -137,9 +137,18 @@ func TestUpdateUser(t *testing.T) {
 				NickName:    "",
 				ProfileUrl:  test.Must(schemas.ParseHTTPURL("http://login.example.com/bjensen")),
 				Emails: []*resources.ScimEmail{
+					{
+						Value: "bjensen@example.com",
+						Type:  "work",
+					},
+					{
+						Value: "babs@jensen.org",
+						Type:  "home",
+					},
 					{
 						Value:   "babs@example.com",
 						Primary: true,
+						Type:    "home",
 					},
 				},
 				Addresses: []*resources.ScimAddress{