chore: Ignore clippy lint assert_is_empty in workspace

Cargo.toml

@@ -893,6 +893,7 @@ significant_drop_tightening = { level = "allow", priority = 1 }      # TODO
 pedantic = { level = "warn", priority = -1 }
 
 ## some sadness
+assert_is_empty = { level = "allow", priority = 1 }
 too_long_first_doc_paragraph = { level = "allow", priority = 1 }
 doc_markdown = { level = "allow", priority = 1 }
 enum_glob_use = { level = "allow", priority = 1 }