fix: skip error when kill sidecar failed

Signed-off-by: henrywangx <[email protected]>

cmd/argoexec/commands/wait.go

@@ -32,7 +32,7 @@ func waitContainer(ctx context.Context) error {
 
 	defer func() {
 		if err := wfExecutor.KillSidecars(ctx); err != nil {
-			wfExecutor.AddError(err)
+            log.WithError(err).Warn("fail to kill sidecars, exit anyway")
 		}
 	}()