Allow too many arguments (#26375)

This is nearly half of our #allows, and seems like something we happily
break whenever we need

Release Notes:

- N/A

crates/workspace/src/pane.rs

@@ -843,7 +843,6 @@ impl Pane {
         }
     }
 
-    #[allow(clippy::too_many_arguments)]
     pub(crate) fn open_item(
         &mut self,
         project_entry_id: Option<ProjectEntryId>,
@@ -928,7 +927,6 @@ impl Pane {
         }
     }
 
-    #[allow(clippy::too_many_arguments)]
     pub fn add_item_inner(
         &mut self,
         item: Box<dyn ItemHandle>,