Fixup: add missing __version__ import

Relates-to commit 605b7d9.

recipe_scrapers/_abstract.py

@@ -12,6 +12,7 @@
 from ._grouping_utils import IngredientGroup
 from ._opengraph import OpenGraph
 from ._schemaorg import SchemaOrg
+from .__version__ import __version__
 
 # Some sites close their content for 'bots', so user-agent must be supplied
 HEADERS = {