fix(rust/examples): correct workspace path typo in flow example

The workspace path was incorrectly spelled as "worksspace_flow_example"
instead of "workspace_flow_example". This fixes the typo to ensure
the example runs correctly.

Author: zTgx

rust/examples/flow.rs

@@ -69,7 +69,7 @@ async fn main() -> vectorless::Result<()> {
     println!("Step 1: Creating Vectorless client...");
 
     let engine = EngineBuilder::new()
-        .with_workspace("./worksspace_flow_example")
+        .with_workspace("./workspace_flow_example")
         .with_key(&api_key)
         .with_model(&model)
         .with_endpoint(&endpoint)