fix: Add missing group_id to RecipeTag and TagBase schemas

Resolves API errors (TypeError/IntegrityError) when updating recipe tags.

The RecipeTag and TagBase Pydantic schemas lacked the group_id field,
causing it to be stripped during API validation. This prevented the
Tag database model, which requires group_id for initialization,
from being processed correctly during recipe updates (PATCH) or
bulk tag actions, leading to errors.

This commit adds the optional group_id field to these schemas to
ensure consistency with the database model requirements.

Author: Robert Dana

mealie/schema/recipe/recipe.py

@@ -38,6 +38,7 @@
 
 class RecipeTag(MealieModel):
     id: UUID4 | None = None
+    group_id: UUID4 | None = None
     name: str
     slug: str
 

mealie/schema/recipe/recipe_category.py

@@ -16,6 +16,7 @@ class CategorySave(CategoryIn):
 
 class CategoryBase(CategoryIn):
     id: UUID4
+    group_id: UUID4 | None = None
     slug: str
     model_config = ConfigDict(from_attributes=True)