Update THIRD_PARTY_LICENSES.txt

Author: mrDzurb

THIRD_PARTY_LICENSES.txt

@@ -453,6 +453,12 @@ mlforecast
 * Source code: https://github.com/Nixtla/mlforecast
 * Project home: https://github.com/Nixtla/mlforecast
 
+pydantic
+* Copyright (c) 2017 to present Pydantic Services Inc. and individual contributors.
+* License: The MIT License (MIT)
+* Source code: https://github.com/pydantic/pydantic
+* Project home: https://docs.pydantic.dev/latest/
+
 =======
 =============================== Licenses ===============================
 ------------------------------------------------------------------------