[fix] fix release.sh broken by black format

release.sh

 #!/bin/bash
 
 #__version_info__ = ('0', '20', '0dev6')
-current=`grep -P "__version_info__ = \(\'\d+\', \'\d+\', \'\d+(\w*)\'\)" src/sakia/__init__.py | grep -oP "\'\d+\', \'\d+\', \'\d+(\w*)\'"`
+current=`grep -P "__version_info__ = \(\"\d+\", \"\d+\", \"\d+(\w*)\"\)" src/sakia/__init__.py | grep -oP "\"\d+\", \"\d+\", \"\d+(\w*)\""`
 echo "Current version: $current"
 
 if [[ $1 =~ ^[0-9]+.[0-9]+.[0-9]+[0-9A-Za-z]*$ ]]; then