resolve a conflict of packages

Author: PengLiVectra

python/Cargo.toml

@@ -43,7 +43,7 @@ version = "0.20"
 features = ["extension-module", "abi3", "abi3-py38"]
 
 [dependencies.pyo3-asyncio]
-version = "0.19"
+version = "0.20"
 features = ["tokio-runtime"]
 
 [dependencies.deltalake]