Enforce ruff/bugbear rule B034

B034 `re.split` should pass `maxsplit` and `flags` as keyword arguments
     to avoid confusion due to unintuitive argument positions

fsspec/utils.py

@@ -435,7 +435,7 @@ def isfilelike(f: Any) -> TypeGuard[IO[bytes]]:
 
 def get_protocol(url: str) -> str:
     url = stringify_path(url)
-    parts = re.split(r"(\:\:|\://)", url, 1)
+    parts = re.split(r"(\:\:|\://)", url, maxsplit=1)
     if len(parts) > 1:
         return parts[0]
     return "file"