Fix broken prompt_reset_on_temperature (#604)

* Fix broken prompt_reset_on_temperature

Fixing: https://github.com/SYSTRAN/faster-whisper/issues/603

Broken because `generate_with_fallback()` doesn't return final temperature.

Regression since PR356 -> https://github.com/SYSTRAN/faster-whisper/pull/356

faster_whisper/transcribe.py

@@ -731,6 +731,13 @@ class WhisperModel:
             decode_result = max(
                 below_cr_threshold_results or all_results, key=lambda x: x[1]
             )
+            # to pass final temperature for prompt_reset_on_temperature
+            decode_result = (
+                decode_result[0],
+                decode_result[1],
+                temperature,
+                decode_result[3],
+            )
 
         return decode_result