fix: black it

Signed-off-by: yihong0618 <zouzou0208@gmail.com>

Author: yihong0618

book_maker/translator/gemini_translator.py

@@ -45,7 +45,6 @@
     "gemini-1.5-flash-002",
     "gemini-2.0-flash-exp",
     "gemini-2.5-flash-preview-04-17",
-    
 ]