style: update generic functions to Python 3.12 syntax (UP047)

Refactor jump_search to use PEP 695 type parameters [T] as required by the latest Ruff configuration.

Author: kvadrik

searches/jump_search.py

@@ -20,7 +20,7 @@ def __lt__(self, other: Any, /) -> bool: ...
 T = TypeVar("T", bound=Comparable)
 
 
-def jump_search(arr: Sequence[T], item: T) -> int:
+def jump_search[T](arr: Sequence[T], item: T) -> int:
     """
     Python implementation of the jump search algorithm.
     Return the index if the `item` is found, otherwise return -1.