Merge #4853

4853: Fix rhai deletion r=irevoire a=dureuill

# Pull Request

## Related issue
Fixes #4849 

## What does this PR do?
- insert inside of the bitmap instead of pushing into it.


Co-authored-by: Louis Dureuil <louis@meilisearch.com>

milli/src/update/index_documents/mod.rs

@@ -290,7 +290,7 @@ where
 
                 match result? {
                     DocumentEdition::Deleted(docid) => {
-                        documents_to_remove.push(docid);
+                        documents_to_remove.insert(docid);
                     }
                     DocumentEdition::Edited(new_document) => {
                         documents_batch_builder.append_json_object(&new_document)?;