[release-notes] Release notes 8.0.0 on master branch (#6114)

Co-authored-by: Mpdreamz <Mpdreamz@users.noreply.github.com>

Author: github-actions[bot]

docs/release-notes/release-notes-8.0.0-generated.asciidoc

@@ -1,2 +1,9 @@
 
+[float]
+[[uncategorized]]
+=== Uncategorized
+
+- * BulkDescriptor.DeleteMany requires <T> while not required for overload IEnumerable<string> ids https://github.com/elastic/elasticsearch-net/issues/3500[#3500]
+- * BulkDescriptor DeleteMany use IEnumerable<Id> https://github.com/elastic/elasticsearch-net/issues/4125[#4125]
+