Update requirements.txt

requirements.txt

@@ -5,7 +5,7 @@ appnope==0.1.3
 astroid==2.15.5
 asttokens==2.2.1
 backcall==0.2.0
-black==24.3.0 # 23.3.0
+black==23.3.0
 blinker==1.6.2
 # certifi==2023.5.7
 charset-normalizer==3.1.0