Fix trailing whitespace lint error

Author: AJ (Ashitosh Jedhe)

presidio-analyzer/presidio_analyzer/chunkers/character_based_text_chunker.py

@@ -47,7 +47,7 @@ def __init__(
 
         self._chunk_size = chunk_size
         self._chunk_overlap = chunk_overlap
-        # Allow callers to tune boundaries 
+        # Allow callers to tune boundaries
         # (e.g., punctuation, tabs) without changing defaults.
         self._boundary_chars: Tuple[str, ...] = (
             tuple(boundary_chars) if boundary_chars is not None else WORD_BOUNDARY_CHARS