fix: move common function to a new file

Author: marslanabdulrauf

openedx/core/djangoapps/content_libraries/tasks.py

@@ -78,6 +78,7 @@
 from xmodule.modulestore.mixed import MixedModuleStore
 
 from . import api
+from .api import create_library_v2_zip
 from .models import ContentLibrary
 
 log = logging.getLogger(__name__)