feat: updating opensearch-py dependency (#2763)

Author: davidsbatista

integrations/opensearch/pyproject.toml

@@ -24,7 +24,7 @@ classifiers = [
 ]
 dependencies = [
   "haystack-ai>=2.22.0",
-  "opensearch-py[async]>=2.4.0,<3"
+  "opensearch-py[async]>=3.0.0"
 ]
 
 [project.urls]

integrations/opensearch/src/haystack_integrations/document_stores/opensearch/document_store.py

@@ -665,9 +665,10 @@ def delete_all_documents(self, recreate_index: bool = False, refresh: bool = Tru
             if recreate_index:
                 # get the current index mappings and settings
                 index_name = self._index
+                index_info = self._client.indices.get(index=self._index)
                 body = {
-                    "mappings": self._client.indices.get(self._index)[index_name]["mappings"],
-                    "settings": self._client.indices.get(self._index)[index_name]["settings"],
+                    "mappings": index_info[index_name]["mappings"],
+                    "settings": index_info[index_name]["settings"],
                 }
                 body["settings"]["index"].pop("uuid", None)
                 body["settings"]["index"].pop("creation_date", None)
@@ -708,7 +709,7 @@ async def delete_all_documents_async(self, recreate_index: bool = False, refresh
             if recreate_index:
                 # get the current index mappings and settings
                 index_name = self._index
-                index_info = await self._async_client.indices.get(self._index)
+                index_info = await self._async_client.indices.get(index=self._index)
                 body = {
                     "mappings": index_info[index_name]["mappings"],
                     "settings": index_info[index_name]["settings"],