feat(spec): add CT Query predicate pro

Author: morganleroi

specs/ingestion/common/schemas/source.yml

@@ -135,6 +135,10 @@ SourceCommercetools:
       default: true
       description: |
         Whether a fallback value is stored in the Algolia record if there's no inventory information about the product.
+    productQueryPredicate:
+        type: string
+        description: |
+            Predicate to filter out specific products when indexing. For more information, see [Query Predicate](https://docs.commercetools.com/api/predicates/query).
     customFields:
       $ref: '#/CommercetoolsCustomFields'
   required:
@@ -405,6 +409,10 @@ SourceUpdateCommercetools:
       type: boolean
       description: |
         Whether a fallback value is stored in the Algolia record if there's no inventory information about the product.
+    productQueryPredicate:
+        type: string
+        description: |
+            Predicate to filter out specific products when indexing. For more information, see [Query Predicate](https://docs.commercetools.com/api/predicates/query).
     customFields:
       $ref: '#/CommercetoolsCustomFields'