Fix typo

Author: duckontheweb

tests/extensions/test_scientific.py

@@ -379,7 +379,7 @@ def test_remove_all_publications_with_none(self) -> None:
         self.collection.validate()
 
     def test_extension_not_implemented(self) -> None:
-        # Should raise exception if Item does not include extension URI
+        # Should raise exception if Collection does not include extension URI
         collection = pystac.Collection.from_file(self.example_collection_uri)
         collection.stac_extensions.remove(ScientificExtension.get_schema_uri())