Bump version of the Python binding to 0.6.3 (#924)

# Description
- Prepare the release of the Python version `0.6.3` binding

Author: fvaleye

python/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "deltalake-python"
-version = "0.6.2"
+version = "0.6.3"
 authors = ["Qingping Hou <[email protected]>"]
 homepage = "https://github.com/delta-io/delta-rs"
 license = "Apache-2.0"