debugger: Add args argument to debugger launch config (#27953)

This also fixes a bug where debug cargo test code actions would debug
all tests in a mod instead of a specific test

Release Notes:

- N/A

crates/dap_adapters/src/javascript.rs

@@ -135,6 +135,7 @@ impl DebugAdapter for JsDebugAdapter {
             }
             DebugRequestType::Launch(launch) => {
                 map.insert("program".into(), launch.program.clone().into());
+                map.insert("args".into(), launch.args.clone().into());
                 map.insert(
                     "cwd".into(),
                     launch