feat(tasks): enable graceful shutdown request via TaskExecutor (#16386)

Signed-off-by: 7suyash7 <suyashnyn1@gmail.com>
Co-authored-by: Matthias Seitz <matthias.seitz@outlook.de>

crates/cli/runner/src/lib.rs

@@ -174,8 +174,10 @@ where
     {
         let fut = pin!(fut);
         tokio::select! {
-            err = tasks => {
-                return Err(err.into())
+            task_manager_result = tasks => {
+                if let Err(panicked_error) = task_manager_result {
+                    return Err(panicked_error.into());
+                }
             },
             res = fut => res?,
         }