Install black as dev dependency

requiremnts.txt

@@ -1,5 +1,6 @@
 attrs==22.1.0
 beautifulsoup4==4.11.1
+black==23.11.0
 blinker==1.6.2
 certifi==2023.7.22
 charset-normalizer==3.2.0
@@ -17,7 +18,10 @@ iniconfig==1.1.1
 itsdangerous==2.1.2
 Jinja2==3.1.2
 MarkupSafe==2.1.3
-packaging==21.3
+mypy-extensions==1.0.0
+packaging==23.2
+pathspec==0.11.2
+platformdirs==4.0.0
 pluggy==1.0.0
 pynsist==2.8
 pyparsing==3.0.9