Fix function calling when writing word timestamps (#156)

Author: fqian1107

sdp/processors/inference/asr/faster_whisper/faster_whisper_inference.py

@@ -388,7 +388,7 @@ def _write_words(words: List[Dict]):
 
         output_words_filepath = None
         if self.config.inference.word_timestamps:
-            output_words_filepath = _write_words(output_words_filepath, sample_words)
+            output_words_filepath = _write_words(sample_words)
 
         return dict(segments = output_segments_filepath, words = output_words_filepath)