Bump version to 15.1.0:

Adds support for:
- celebratingsweets.com
- ingoodflavor.com
- kalejunkie.com
- kitchendreaming.com
- leitesculinaria.com
- myvegetarianroots.com
- ottolenghi.co.uk
- peelwithzeal.com
- sandwichtribunal.com

Improvements:
- streetkitchen.hu: additional field retrievals
- whatsgabycooking.com: ingredient group support

recipe_scrapers/__version__.py

@@ -1 +1 @@
-__version__ = "15.0.1"
+__version__ = "15.1.0"