Refactor the code of osccore-qa-testing-tools  to comply with PEP8.

Related-prod: PRODX-42195
Change-Id: Id05e7584e0d024127ce1bd5042cfe681a1b52e2d
diff --git a/testrail_bot/manage.py b/testrail_bot/manage.py
index ff64df6..14ab9a8 100755
--- a/testrail_bot/manage.py
+++ b/testrail_bot/manage.py
@@ -5,7 +5,7 @@
 
 
 def main():
-    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'testrail_bot.settings')
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "testrail_bot.settings")
     try:
         from django.core.management import execute_from_command_line
     except ImportError as exc:
@@ -17,5 +17,5 @@
     execute_from_command_line(sys.argv)
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()