feat: delete user scim v2 endpoint (#9151)

# Which Problems Are Solved
- Adds support for the user delete SCIM v2 endpoint

# How the Problems Are Solved
- Adds support for the user delete SCIM v2 endpoint under `DELETE
/scim/v2/{orgID}/Users/{id}`

# Additional Context
Part of #8140

internal/api/scim/authz.go

@@ -10,4 +10,7 @@ var AuthMapping = authz.MethodMapping{
 	"POST:/scim/v2/" + http.OrgIdInPathVariable + "/Users": {
 		Permission: domain.PermissionUserWrite,
 	},
+	"DELETE:/scim/v2/" + http.OrgIdInPathVariable + "/Users/{id}": {
+		Permission: domain.PermissionUserDelete,
+	},
 }