Wrap values() call in list to fix type error (#9460) (#9461)

(cherry picked from commit 721f56f36ea505a6ba0ab49315907aec00370520)

Co-authored-by: Joe Rogers <1337joe@users.noreply.github.com>

src/backend/InvenTree/common/api.py

@@ -805,7 +805,7 @@ class IconList(ListAPI):
 
     def get_queryset(self):
         """Return a list of all available icon packages."""
-        return get_icon_packs().values()
+        return list(get_icon_packs().values())
 
 
 class SelectionListList(ListCreateAPI):