[branch-49] Prepare 49.0.2 version and changelog (#17277)

* Update versio to 49.0.2

* Add changelog

* update configuration docs

Author: alamb

Cargo.lock

@@ -77,7 +77,7 @@ repository = "https://github.com/apache/datafusion"
 # Define Minimum Supported Rust Version (MSRV)
 rust-version = "1.85.1"
 # Define DataFusion version
-version = "49.0.1"
+version = "49.0.2"
 
 [workspace.dependencies]
 # We turn off default-features for some dependencies here so the workspaces which inherit them can