[misc] Add hatch, ruff, pre-commit and improve dev docs (#7409)

Authored by: bashonly, seproDev, Grub4K

Co-authored-by: bashonly <88596187+bashonly@users.noreply.github.com>
Co-authored-by: sepro <4618135+seproDev@users.noreply.github.com>

yt_dlp/extractor/bostonglobe.py

@@ -1,7 +1,6 @@
 import re
 
 from .common import InfoExtractor
-
 from ..utils import (
     extract_attributes,
 )