chore: prepare release 0.6.3 (#54)

Author: WenyXu

Cargo.toml

@@ -17,7 +17,7 @@
 
 [package]
 name = "orc-rust"
-version = "0.6.2"
+version = "0.6.3"
 edition = "2021"
 homepage = "https://github.com/datafusion-contrib/orc-rust"
 repository = "https://github.com/datafusion-contrib/orc-rust"