try reenabling pinecone tests (#1871)

Author: anakin87

integrations/pinecone/tests/test_filters.py

@@ -63,13 +63,3 @@ def test_comparison_less_than_equal_with_none(self, document_store, filterable_d
 
     @pytest.mark.skip(reason="Pinecone does not support the 'not' operator")
     def test_not_operator(self, document_store, filterable_docs): ...
-
-    # the following skipped tests should be reworked when Pinecone introduces a better handling of null values
-    # see https://github.com/deepset-ai/haystack-core-integrations/issues/590
-    @pytest.mark.skip(reason="Pinecone does not include null values in the result of the $ne operator")
-    def test_comparison_not_equal(self, document_store, filterable_docs): ...
-
-    @pytest.mark.skip(
-        reason="Pinecone has inconsistent behavior with respect to other Document Stores with the $or operator"
-    )
-    def test_or_operator(self, document_store, filterable_docs): ...