Convert formatting to use ruff instead of yapf + isort (#26247)

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

tests/tokenization/test_do_lower_case.py

@@ -13,6 +13,6 @@ TOKENIZER_NAMES = ["BAAI/bge-base-en"]
 def test_special_tokens(tokenizer_name: str, n_tokens: int):
     tokenizer = get_tokenizer(tokenizer_name, revision="main")
 
-    prompts = '[UNK]' * n_tokens
+    prompts = "[UNK]" * n_tokens
     prompt_token_ids = tokenizer.encode(prompts)
     assert len(prompt_token_ids) == n_tokens + 2