feat(ui): Change <DropdownMenu> to expose open/close actions in render func (#13443)

This allows components that use `<DropdownMenu>` to be able to control the menu visibility

Author: billyvg

src/sentry/static/sentry/app/components/dropdownMenu.jsx

@@ -363,6 +363,10 @@ class DropdownMenu extends React.Component {
       getRootProps: this.getRootProps,
       getActorProps: this.getActorProps,
       getMenuProps: this.getMenuProps,
+      actions: {
+        open: this.handleOpen,
+        close: this.handleClose,
+      },
     });
   }
 }