add client_id to the user_info sent to opa

gso/auth/oidc_policy_helper.py

@@ -92,6 +92,11 @@ class OIDCUserModel(dict):
                 return self.get(key)
             raise error from None
 
+    @property
+    def client_id(self) -> str:
+        """Return the client id."""
+        return self.get("client_id") or ""
+
     @property
     def user_name(self) -> str:
         """Return the username of the user."""
@@ -236,6 +241,8 @@ class OIDCUser(HTTPBearer):
 
             user_info = await self.userinfo(async_request, token)
 
+            user_info["client_id"] = intercepted_token.get("client_id")
+
             logger.debug("OIDCUserModel object.", intercepted_token=intercepted_token)
             return user_info