Pin ud-hf-parquet-tools to v1.2.1

pyproject.toml

@@ -67,4 +67,4 @@ url = "https://test.pypi.org/simple/"
 explicit = true
 
 [tool.uv.sources]
-ud-hf-parquet-tools = { git = "https://github.com/bot-zen/ud-hf-parquet-tools", tag = "v1.1.0" }
+ud-hf-parquet-tools = { git = "https://github.com/bot-zen/ud-hf-parquet-tools", tag = "v1.2.1" }